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87253035278 = 2116337512053
BaseRepresentation
bin101000101000010101…
…1111010100100001110
322100012210222102221012
41101100223322210032
52412143234112103
6104030011205222
76206132364023
oct1212053724416
9270183872835
1087253035278
1134005077912
1214ab0a46812
1382c69a3b76
14431a16154a
15240a11b2d8
hex1450afa90e

87253035278 has 8 divisors (see below), whose sum is σ = 130992092568. Its totient is φ = 43589004424.

The previous prime is 87253035229. The next prime is 87253035281.

It is a happy number.

87253035278 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×872530352782 (a number of 23 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18753701 + ... + 18758352.

It is an arithmetic number, because the mean of its divisors is an integer number (16374011571).

Almost surely, 287253035278 is an apocalyptic number.

87253035278 is a deficient number, since it is larger than the sum of its proper divisors (43739057290).

87253035278 is a wasteful number, since it uses less digits than its factorization.

87253035278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37513218.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 87253035278 in words is "eighty-seven billion, two hundred fifty-three million, thirty-five thousand, two hundred seventy-eight".

Divisors: 1 2 1163 2326 37512053 75024106 43626517639 87253035278