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151085786858 = 2617971553837
BaseRepresentation
bin1000110010110101101…
…0100010011011101010
3112102222102120012102122
42030231122202123222
54433410430134413
6153224032431242
713626021666416
oct2145532423352
9472872505378
10151085786858
1159090a95966
12253463a8522
131132a4c49a6
147453a6dd46
153de40a9108
hex232d6a26ea

151085786858 has 16 divisors (see below), whose sum is σ = 230633066664. Its totient is φ = 74211207360.

The previous prime is 151085786857. The next prime is 151085786881. The reversal of 151085786858 is 858687580151.

151085786858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 95402530129 + 55683256729 = 308873^2 + 235973^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 151085786858.

It is not an unprimeable number, because it can be changed into a prime (151085786857) 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 7 ways as a sum of consecutive naturals, for example, 679685 + ... + 874152.

Almost surely, 2151085786858 is an apocalyptic number.

151085786858 is a deficient number, since it is larger than the sum of its proper divisors (79547279806).

151085786858 is a wasteful number, since it uses less digits than its factorization.

151085786858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554697.

The product of its (nonzero) digits is 21504000, while the sum is 62.

The spelling of 151085786858 in words is "one hundred fifty-one billion, eighty-five million, seven hundred eighty-six thousand, eight hundred fifty-eight".

Divisors: 1 2 61 122 797 1594 48617 97234 1553837 3107674 94784057 189568114 1238408089 2476816178 75542893429 151085786858