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151645556057 = 949115977827
BaseRepresentation
bin1000110100111011000…
…1111000110101011001
3112111102102212102102012
42031032301320311121
54441032230243212
6153355350315305
713645626646532
oct2151661706531
9474372772365
10151645556057
1159348a65836
1225481958b35
13113b9475978
1474a8143689
153e282cb922
hex234ec78d59

151645556057 has 4 divisors (see below), whose sum is σ = 151661543376. Its totient is φ = 151629568740.

The previous prime is 151645556039. The next prime is 151645556131. The reversal of 151645556057 is 750655546151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151645556057 - 218 = 151645293913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151645555996 and 151645556014.

It is not an unprimeable number, because it can be changed into a prime (151645559057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7979423 + ... + 7998404.

It is an arithmetic number, because the mean of its divisors is an integer number (37915385844).

Almost surely, 2151645556057 is an apocalyptic number.

It is an amenable number.

151645556057 is a deficient number, since it is larger than the sum of its proper divisors (15987319).

151645556057 is an equidigital number, since it uses as much as digits as its factorization.

151645556057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15987318.

The product of its (nonzero) digits is 3150000, while the sum is 50.

The spelling of 151645556057 in words is "one hundred fifty-one billion, six hundred forty-five million, five hundred fifty-six thousand, fifty-seven".

Divisors: 1 9491 15977827 151645556057