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872874253 = 4991749247
BaseRepresentation
bin110100000001110…
…000000100001101
32020211110121101001
4310001300010031
53241423434003
6222340420301
730426210616
oct6401600415
92224417331
10872874253
11408795389
122043a7691
1310bab9a54
1483cd8c0d
155196e61d
hex3407010d

872874253 has 4 divisors (see below), whose sum is σ = 874624000. Its totient is φ = 871124508.

The previous prime is 872874241. The next prime is 872874257. The reversal of 872874253 is 352478278.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 352478278 = 2176239139.

It is a cyclic number.

It is not a de Polignac number, because 872874253 - 221 = 870777101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872874257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 874125 + ... + 875122.

It is an arithmetic number, because the mean of its divisors is an integer number (218656000).

Almost surely, 2872874253 is an apocalyptic number.

It is an amenable number.

872874253 is a deficient number, since it is larger than the sum of its proper divisors (1749747).

872874253 is a wasteful number, since it uses less digits than its factorization.

872874253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749746.

The product of its digits is 752640, while the sum is 46.

The square root of 872874253 is about 29544.4453831850. The cubic root of 872874253 is about 955.6904094460.

The spelling of 872874253 in words is "eight hundred seventy-two million, eight hundred seventy-four thousand, two hundred fifty-three".

Divisors: 1 499 1749247 872874253