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87077610072 = 23328811372771
BaseRepresentation
bin101000100011000111…
…0101110001001011000
322022202120212220210100
41101012032232021120
52411313332010242
6104000343215400
76201602321205
oct1210616561130
9268676786710
1087077610072
1133a2504a302
1214a62147560
13829954237b
144300b38cac
1523e9a1854c
hex14463ae258

87077610072 has 48 divisors (see below), whose sum is σ = 236103056280. Its totient is φ = 28992902400.

The previous prime is 87077610023. The next prime is 87077610073. The reversal of 87077610072 is 27001677078.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87077610073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622954 + ... + 749817.

Almost surely, 287077610072 is an apocalyptic number.

It is an amenable number.

87077610072 is an abundant number, since it is smaller than the sum of its proper divisors (149025446208).

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

87077610072 is a wasteful number, since it uses less digits than its factorization.

87077610072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373664 (or 1373657 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 87077610072 in words is "eighty-seven billion, seventy-seven million, six hundred ten thousand, seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 881 1762 2643 3524 5286 7048 7929 10572 15858 21144 31716 63432 1372771 2745542 4118313 5491084 8236626 10982168 12354939 16473252 24709878 32946504 49419756 98839512 1209411251 2418822502 3628233753 4837645004 7256467506 9675290008 10884701259 14512935012 21769402518 29025870024 43538805036 87077610072