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154042100 = 225217313779
BaseRepresentation
bin10010010111001…
…11111011110100
3101201212011000222
421023213323310
5303413321400
623141353512
73550223222
oct1113477364
9351764028
10154042100
1179a53123
1243708898
1325bb5994
141665bb12
15d7cc185
hex92e7ef4

154042100 has 144 divisors (see below), whose sum is σ = 379975680. Its totient is φ = 53913600.

The previous prime is 154042099. The next prime is 154042103. The reversal of 154042100 is 1240451.

154042100 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

154042100 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154042103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1949861 + ... + 1949939.

It is an arithmetic number, because the mean of its divisors is an integer number (2638720).

Almost surely, 2154042100 is an apocalyptic number.

154042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154042100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189987840).

154042100 is an abundant number, since it is smaller than the sum of its proper divisors (225933580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154042100 is a wasteful number, since it uses less digits than its factorization.

154042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 154042100 is about 12411.3697874167. The cubic root of 154042100 is about 536.0596809242.

Adding to 154042100 its reverse (1240451), we get a palindrome (155282551).

The spelling of 154042100 in words is "one hundred fifty-four million, forty-two thousand, one hundred".

Divisors: 1 2 4 5 10 17 20 25 31 34 37 50 62 68 74 79 85 100 124 148 155 158 170 185 310 316 340 370 395 425 527 620 629 740 775 790 850 925 1054 1147 1258 1343 1550 1580 1700 1850 1975 2108 2294 2449 2516 2635 2686 2923 3100 3145 3700 3950 4588 4898 5270 5372 5735 5846 6290 6715 7900 9796 10540 11470 11692 12245 12580 13175 13430 14615 15725 19499 22940 24490 26350 26860 28675 29230 31450 33575 38998 41633 48980 49691 52700 57350 58460 61225 62900 67150 73075 77996 83266 90613 97495 99382 114700 122450 134300 146150 166532 181226 194990 198764 208165 244900 248455 292300 362452 389980 416330 453065 487475 496910 832660 906130 974950 993820 1040825 1242275 1540421 1812260 1949900 2081650 2265325 2484550 3080842 4163300 4530650 4969100 6161684 7702105 9061300 15404210 30808420 38510525 77021050 154042100