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87070085125 = 532398330809
BaseRepresentation
bin101000100010111001…
…0000001000000000101
322022202001201121111121
41101011302001000011
52411304420211000
6103555514033541
76201451340452
oct1210562010005
9268661647447
1087070085125
1133a2087a741
1214a5b7188b1
138297b0923a
1442ddb3a829
1523e902db1a
hex1445c81005

87070085125 has 32 divisors (see below), whose sum is σ = 113506997760. Its totient is φ = 66557603200.

The previous prime is 87070085119. The next prime is 87070085173. The reversal of 87070085125 is 52158007078.

It is not a de Polignac number, because 87070085125 - 211 = 87070083077 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2810721 + ... + 2841529.

It is an arithmetic number, because the mean of its divisors is an integer number (3547093680).

Almost surely, 287070085125 is an apocalyptic number.

It is an amenable number.

87070085125 is a deficient number, since it is larger than the sum of its proper divisors (26436912635).

87070085125 is a wasteful number, since it uses less digits than its factorization.

87070085125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31830 (or 31820 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 43.

The spelling of 87070085125 in words is "eighty-seven billion, seventy million, eighty-five thousand, one hundred twenty-five".

Divisors: 1 5 23 25 115 125 575 983 2875 4915 22609 24575 30809 113045 122875 154045 565225 708607 770225 2826125 3543035 3851125 17715175 30285247 88575875 151426235 696560681 757131175 3482803405 3785655875 17414017025 87070085125