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54990402265 = 5172328128083
BaseRepresentation
bin110011001101101011…
…101111001011011001
312020221101010212120101
4303031223233023121
51400110020333030
641132351055401
73654466464331
oct631553571331
9166841125511
1054990402265
1121359715147
12a7a8211561
13525491ab86
1429394140c1
15166ca527ca
hexccdaef2d9

54990402265 has 16 divisors (see below), whose sum is σ = 72907993728. Its totient is φ = 39604339456.

The previous prime is 54990402221. The next prime is 54990402277. The reversal of 54990402265 is 56220409945.

It is a cyclic number.

It is not a de Polignac number, because 54990402265 - 223 = 54982013657 is a prime.

It is a Duffinian number.

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, 14062087 + ... + 14065996.

It is an arithmetic number, because the mean of its divisors is an integer number (4556749608).

Almost surely, 254990402265 is an apocalyptic number.

It is an amenable number.

54990402265 is a deficient number, since it is larger than the sum of its proper divisors (17917591463).

54990402265 is a wasteful number, since it uses less digits than its factorization.

54990402265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28128128.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 54990402265 in words is "fifty-four billion, nine hundred ninety million, four hundred two thousand, two hundred sixty-five".

Divisors: 1 5 17 23 85 115 391 1955 28128083 140640415 478177411 646945909 2390887055 3234729545 10998080453 54990402265