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87253535488 = 28748690589
BaseRepresentation
bin101000101000010110…
…1110100101100000000
322100012211220212002111
41101100231310230000
52412143401113423
6104030030025104
76206136546250
oct1212055645400
9270184825074
1087253535488
1134005389709
1214ab1048194
1382c6b1a752
14431a251960
15240a1b960d
hex1450b74b00

87253535488 has 36 divisors (see below), whose sum is σ = 199047131920. Its totient is φ = 37394371584.

The previous prime is 87253535477. The next prime is 87253535543. The reversal of 87253535488 is 88453535278.

It is a super-2 number, since 2×872535354882 (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24343503 + ... + 24347086.

Almost surely, 287253535488 is an apocalyptic number.

It is an amenable number.

87253535488 is an abundant number, since it is smaller than the sum of its proper divisors (111793596432).

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

87253535488 is an equidigital number, since it uses as much as digits as its factorization.

87253535488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48690612 (or 48690598 counting only the distinct ones).

The product of its digits is 32256000, while the sum is 58.

The spelling of 87253535488 in words is "eighty-seven billion, two hundred fifty-three million, five hundred thirty-five thousand, four hundred eighty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 48690589 97381178 194762356 340834123 389524712 681668246 779049424 1363336492 1558098848 2726672984 3116197696 5453345968 6232395392 10906691936 12464790784 21813383872 43626767744 87253535488