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87316283731844 = 2282126588393341
BaseRepresentation
bin10011110110100111101000…
…000100110010111110000100
3102110011100120221110022110202
4103312213220010302332010
542421042222113404334
6505412314052110032
724251251623546116
oct2366475004627604
9373140527408422
1087316283731844
112590469a921502
129962592905318
133994b75a9581b
14177c1b883b3b6
15a1646c18617e
hex4f69e8132f84

87316283731844 has 12 divisors (see below), whose sum is σ = 152989615289868. Its totient is φ = 43604965077600.

The previous prime is 87316283731841. The next prime is 87316283731879. The reversal of 87316283731844 is 44813738261378.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30082065722944 + 57234218008900 = 5484712^2 + 7565330^2 .

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (87316283731841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13294193387 + ... + 13294199954.

It is an arithmetic number, because the mean of its divisors is an integer number (12749134607489).

Almost surely, 287316283731844 is an apocalyptic number.

It is an amenable number.

87316283731844 is a deficient number, since it is larger than the sum of its proper divisors (65673331558024).

87316283731844 is a wasteful number, since it uses less digits than its factorization.

87316283731844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26588394166 (or 26588394164 counting only the distinct ones).

The product of its digits is 130056192, while the sum is 65.

The spelling of 87316283731844 in words is "eighty-seven trillion, three hundred sixteen billion, two hundred eighty-three million, seven hundred thirty-one thousand, eight hundred forty-four".

Divisors: 1 2 4 821 1642 3284 26588393341 53176786682 106353573364 21829070932961 43658141865922 87316283731844