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55211109874 = 22313113766877
BaseRepresentation
bin110011011010110101…
…101010110111110010
312021111202102222111021
4303122311222313302
51401033021003444
641210313410054
73663116455624
oct633265526762
9167452388437
1055211109874
1121462261028
12a84a10992a
13528b5756ab
14295a866c14
1516820ec584
hexcdad6adf2

55211109874 has 32 divisors (see below), whose sum is σ = 87713974656. Its totient is φ = 26012088960.

The previous prime is 55211109869. The next prime is 55211109901. The reversal of 55211109874 is 47890111255.

It is a self number, because there is not a number n which added to its sum of digits gives 55211109874.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792124 + ... + 859000.

It is an arithmetic number, because the mean of its divisors is an integer number (2741061708).

Almost surely, 255211109874 is an apocalyptic number.

55211109874 is a deficient number, since it is larger than the sum of its proper divisors (32502864782).

55211109874 is a wasteful number, since it uses less digits than its factorization.

55211109874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67170.

The product of its (nonzero) digits is 100800, while the sum is 43.

The spelling of 55211109874 in words is "fifty-five billion, two hundred eleven million, one hundred nine thousand, eight hundred seventy-four".

Divisors: 1 2 23 46 131 137 262 274 3013 3151 6026 6302 17947 35894 66877 133754 412781 825562 1538171 3076342 8760887 9162149 17521774 18324298 201500401 210729427 403000802 421458854 1200241519 2400483038 27605554937 55211109874