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52405225015 = 51113174311413
BaseRepresentation
bin110000110011100110…
…000100011000110111
312000021012200021001211
4300303212010120313
51324311214200030
640024041502251
73533436030403
oct606346043067
9160235607054
1052405225015
1120252424220
12a1a64a1987
134c321679b0
142771d50103
15156aaee12a
hexc33984637

52405225015 has 32 divisors (see below), whose sum is σ = 78226295616. Its totient is φ = 33111644160.

The previous prime is 52405224901. The next prime is 52405225051. The reversal of 52405225015 is 51052250425.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-52405225015 is a prime.

It is a Duffinian number.

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 31 ways as a sum of consecutive naturals, for example, 2143552 + ... + 2167861.

It is an arithmetic number, because the mean of its divisors is an integer number (2444571738).

Almost surely, 252405225015 is an apocalyptic number.

52405225015 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

52405225015 is a deficient number, since it is larger than the sum of its proper divisors (25821070601).

52405225015 is a wasteful number, since it uses less digits than its factorization.

52405225015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4311459.

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 52405225015 in words is "fifty-two billion, four hundred five million, two hundred twenty-five thousand, fifteen".

Divisors: 1 5 11 13 17 55 65 85 143 187 221 715 935 1105 2431 12155 4311413 21557065 47425543 56048369 73294021 237127715 280241845 366470105 616532059 806234231 952822273 3082660295 4031171155 4764111365 10481045003 52405225015