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55451323254 = 2323401821183
BaseRepresentation
bin110011101001001010…
…000000101101110110
312022010111110002022010
4303221022000231312
51402031014321004
641250214145050
74002064320315
oct635112005566
9168114402263
1055451323254
112157590a988
12a8b6652186
1352c926c6a2
14298071627c
15169824ba89
hexce9280b76

55451323254 has 16 divisors (see below), whose sum is σ = 115724500992. Its totient is φ = 17680132008.

The previous prime is 55451323247. The next prime is 55451323273. The reversal of 55451323254 is 45232315455.

It is a super-2 number, since 2×554513232542 (a number of 22 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 7 ways as a sum of consecutive naturals, for example, 200910454 + ... + 200910729.

It is an arithmetic number, because the mean of its divisors is an integer number (7232781312).

Almost surely, 255451323254 is an apocalyptic number.

55451323254 is an abundant number, since it is smaller than the sum of its proper divisors (60273177738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55451323254 is a wasteful number, since it uses less digits than its factorization.

55451323254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401821211.

The product of its digits is 360000, while the sum is 39.

The spelling of 55451323254 in words is "fifty-five billion, four hundred fifty-one million, three hundred twenty-three thousand, two hundred fifty-four".

Divisors: 1 2 3 6 23 46 69 138 401821183 803642366 1205463549 2410927098 9241887209 18483774418 27725661627 55451323254