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87057677730 = 23525911120001
BaseRepresentation
bin101000100010100001…
…0101011110110100010
322022201012101020202110
41101011002223312202
52411243231141410
6103554352100150
76201241023342
oct1210502536642
9268635336673
1087057677730
1133a148758a1
1214a57534656
13829538399a
1442dc22ad22
1523e7dcc720
hex14450abda2

87057677730 has 32 divisors (see below), whose sum is σ = 209019253248. Its totient is φ = 23206400000.

The previous prime is 87057677717. The next prime is 87057677737. The reversal of 87057677730 is 3777675078.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87057677737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 482271 + ... + 637730.

It is an arithmetic number, because the mean of its divisors is an integer number (6531851664).

Almost surely, 287057677730 is an apocalyptic number.

87057677730 is an abundant number, since it is smaller than the sum of its proper divisors (121961575518).

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

87057677730 is a wasteful number, since it uses less digits than its factorization.

87057677730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122602.

The product of its (nonzero) digits is 12101040, while the sum is 57.

The spelling of 87057677730 in words is "eighty-seven billion, fifty-seven million, six hundred seventy-seven thousand, seven hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 2591 5182 7773 12955 15546 25910 38865 77730 1120001 2240002 3360003 5600005 6720006 11200010 16800015 33600030 2901922591 5803845182 8705767773 14509612955 17411535546 29019225910 43528838865 87057677730