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87530274399 = 387313341743
BaseRepresentation
bin101000110000100110…
…1011111111001011111
322100221010122122111210
41101201031133321133
52413230222240044
6104113313315503
76216040025241
oct1214115377137
9270833578453
1087530274399
1134137615757
1214b69865b93
13833c262999
144344ccc091
1524246311b9
hex146135fe5f

87530274399 has 8 divisors (see below), whose sum is σ = 116720434432. Its totient is φ = 58346815320.

The previous prime is 87530274397. The next prime is 87530274413. The reversal of 87530274399 is 99347203578.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 87530274399 - 21 = 87530274397 is a prime.

It is a super-2 number, since 2×875302743992 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87530274397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644679 + ... + 1697064.

It is an arithmetic number, because the mean of its divisors is an integer number (14590054304).

Almost surely, 287530274399 is an apocalyptic number.

87530274399 is a deficient number, since it is larger than the sum of its proper divisors (29190160033).

87530274399 is a wasteful number, since it uses less digits than its factorization.

87530274399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3350477.

The product of its (nonzero) digits is 11430720, while the sum is 57.

The spelling of 87530274399 in words is "eighty-seven billion, five hundred thirty million, two hundred seventy-four thousand, three hundred ninety-nine".

Divisors: 1 3 8731 26193 3341743 10025229 29176758133 87530274399