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158118868212 = 22331723758733
BaseRepresentation
bin1001001101000010011…
…1100111010011110100
3120010010120112202022020
42103100213213103310
510042311412240322
6200345552033140
714265222126654
oct2232047472364
9503116482266
10158118868212
116106aa84a98
12267898327b0
1311bab6112a6
14791db5c364
1541a675a05c
hex24d09e74f4

158118868212 has 48 divisors (see below), whose sum is σ = 380904556032. Its totient is φ = 50998170240.

The previous prime is 158118868157. The next prime is 158118868213. The reversal of 158118868212 is 212868811851.

It is a happy number.

158118868212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158118868213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2662798 + ... + 2721530.

It is an arithmetic number, because the mean of its divisors is an integer number (7935511584).

Almost surely, 2158118868212 is an apocalyptic number.

158118868212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158118868212 is an abundant number, since it is smaller than the sum of its proper divisors (222785687820).

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

158118868212 is a wasteful number, since it uses less digits than its factorization.

158118868212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66008 (or 66006 counting only the distinct ones).

The product of its digits is 491520, while the sum is 51.

The spelling of 158118868212 in words is "one hundred fifty-eight billion, one hundred eighteen million, eight hundred sixty-eight thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 7237 14474 21711 28948 43422 58733 86844 117466 176199 224347 234932 352398 448694 673041 704796 897388 1346082 1820723 2692164 3641446 5462169 7282892 10924338 21848676 425050721 850101442 1275152163 1700202884 2550304326 5100608652 13176572351 26353144702 39529717053 52706289404 79059434106 158118868212