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87205051496 = 23109131763403
BaseRepresentation
bin101000100110111010…
…0110111110001101000
322100002110200121120002
41101031310313301220
52412043443121441
6104021134522132
76205010464433
oct1211564676150
9270073617502
1087205051496
1133a8aa839a2
1214a98966348
1382b9a733b4
144313a3081a
152405cddb9b
hex144dd37c68

87205051496 has 32 divisors (see below), whose sum is σ = 166269391200. Its totient is φ = 42872656320.

The previous prime is 87205051481. The next prime is 87205051501. The reversal of 87205051496 is 69415050278.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 87205051496.

It is an unprimeable number.

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, 267470 + ... + 495933.

It is an arithmetic number, because the mean of its divisors is an integer number (5195918475).

Almost surely, 287205051496 is an apocalyptic number.

It is an amenable number.

87205051496 is a deficient number, since it is larger than the sum of its proper divisors (79064339704).

87205051496 is a wasteful number, since it uses less digits than its factorization.

87205051496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763649 (or 763645 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 87205051496 in words is "eighty-seven billion, two hundred five million, fifty-one thousand, four hundred ninety-six".

Divisors: 1 2 4 8 109 131 218 262 436 524 872 1048 14279 28558 57116 114232 763403 1526806 3053612 6107224 83210927 100005793 166421854 200011586 332843708 400023172 665687416 800046344 10900631437 21801262874 43602525748 87205051496