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142554996 = 2232171092137
BaseRepresentation
bin10000111111100…
…11011101110100
3100221020112200200
420133303131310
5242443224441
622051240500
73350461143
oct1037633564
9327215620
10142554996
1173517751
123b8a9130
13236c328c
1414d0b75a
15c7ad7b6
hex87f3774

142554996 has 72 divisors (see below), whose sum is σ = 385224840. Its totient is φ = 44292096.

The previous prime is 142554977. The next prime is 142555009. The reversal of 142554996 is 699455241.

142554996 is a `hidden beast` number, since 1 + 4 + 2 + 554 + 9 + 96 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17338896 + 125216100 = 4164^2 + 11190^2 .

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 65640 + ... + 67776.

It is an arithmetic number, because the mean of its divisors is an integer number (5350345).

Almost surely, 2142554996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142554996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192612420).

142554996 is an abundant number, since it is smaller than the sum of its proper divisors (242669844).

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

142554996 is a wasteful number, since it uses less digits than its factorization.

142554996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273 (or 2268 counting only the distinct ones).

The product of its digits is 388800, while the sum is 45.

The square root of 142554996 is about 11939.6396930561. The cubic root of 142554996 is about 522.3891491985.

The spelling of 142554996 in words is "one hundred forty-two million, five hundred fifty-four thousand, nine hundred ninety-six".

Divisors: 1 2 3 4 6 9 12 17 18 34 36 51 68 102 109 153 204 218 306 327 436 612 654 981 1308 1853 1962 2137 3706 3924 4274 5559 6411 7412 8548 11118 12822 16677 19233 22236 25644 33354 36329 38466 66708 72658 76932 108987 145316 217974 232933 326961 435948 465866 653922 698799 931732 1307844 1397598 2096397 2795196 3959861 4192794 7919722 8385588 11879583 15839444 23759166 35638749 47518332 71277498 142554996