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121514130 = 232517431847
BaseRepresentation
bin1110011111000…
…10100010010010
322110122120001100
413033202202102
5222101423010
620020245230
73003565413
oct717424222
9273576040
10121514130
1162656401
1234840816
131c23716a
14121d180a
15aa042c0
hex73e2892

121514130 has 96 divisors (see below), whose sum is σ = 342486144. Its totient is φ = 29772288.

The previous prime is 121514123. The next prime is 121514161. The reversal of 121514130 is 31415121.

121514130 is a `hidden beast` number, since 1 + 21 + 514 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64867 + ... + 66713.

It is an arithmetic number, because the mean of its divisors is an integer number (3567564).

Almost surely, 2121514130 is an apocalyptic number.

121514130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121514130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171243072).

121514130 is an abundant number, since it is smaller than the sum of its proper divisors (220972014).

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

121514130 is a wasteful number, since it uses less digits than its factorization.

121514130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1917 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 121514130 is about 11023.3447737064. The cubic root of 121514130 is about 495.3082866854.

Adding to 121514130 its reverse (31415121), we get a palindrome (152929251).

Subtracting from 121514130 its reverse (31415121), we obtain a palindrome (90099009).

The spelling of 121514130 in words is "one hundred twenty-one million, five hundred fourteen thousand, one hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 17 18 30 34 43 45 51 85 86 90 102 129 153 170 215 255 258 306 387 430 510 645 731 765 774 1290 1462 1530 1847 1935 2193 3655 3694 3870 4386 5541 6579 7310 9235 10965 11082 13158 16623 18470 21930 27705 31399 32895 33246 55410 62798 65790 79421 83115 94197 156995 158842 166230 188394 238263 282591 313990 397105 470985 476526 565182 714789 794210 941970 1191315 1350157 1412955 1429578 2382630 2700314 2825910 3573945 4050471 6750785 7147890 8100942 12151413 13501570 20252355 24302826 40504710 60757065 121514130