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25887231230070 = 2357237895347817
BaseRepresentation
bin1011110001011010101110…
…01110001100000001110110
310101122210110122122222212110
411320231113032030001312
511343114022143330240
6131020232503031450
75311201502555100
oct570552716140166
9111583418588773
1025887231230070
118280793172571
122aa115143b586
13115a203632522
14656d3d252570
152ed5bdb09c80
hex178b5738c076

25887231230070 has 192 divisors, whose sum is σ = 75060262146240. Its totient is φ = 5692472045568.

The previous prime is 25887231229949. The next prime is 25887231230087. The reversal of 25887231230070 is 7003213278852.

It is a super-2 number, since 2×258872312300702 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 2166802 + ... + 7514618.

It is an arithmetic number, because the mean of its divisors is an integer number (390938865345).

Almost surely, 225887231230070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25887231230070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37530131073120).

25887231230070 is an abundant number, since it is smaller than the sum of its proper divisors (49173030916170).

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

25887231230070 is a wasteful number, since it uses less digits than its factorization.

25887231230070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5347967 (or 5347960 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 25887231230070 in words is "twenty-five trillion, eight hundred eighty-seven billion, two hundred thirty-one million, two hundred thirty thousand, seventy".