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642306412324 = 22730921969709
BaseRepresentation
bin10010101100011000111…
…00100000111100100100
32021101220102211110220101
421112030130200330210
541010420420143244
61211023235313444
764255644265003
oct11261434407444
92241812743811
10642306412324
11228445252325
12a459714b884
13487527bb795
1423132cacc3a
1511a940910d4
hex958c720f24

642306412324 has 12 divisors (see below), whose sum is σ = 1124190060700. Its totient is φ = 321109252128.

The previous prime is 642306412291. The next prime is 642306412339. The reversal of 642306412324 is 423214603246.

It can be written as a sum of positive squares in 2 ways, for example, as 283407169600 + 358899242724 = 532360^2 + 599082^2 .

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 3 ways as a sum of consecutive naturals, for example, 10955619 + ... + 11014090.

Almost surely, 2642306412324 is an apocalyptic number.

It is an amenable number.

642306412324 is a deficient number, since it is larger than the sum of its proper divisors (481883648376).

642306412324 is a wasteful number, since it uses less digits than its factorization.

642306412324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21977022 (or 21977020 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 642306412324 in words is "six hundred forty-two billion, three hundred six million, four hundred twelve thousand, three hundred twenty-four".

Divisors: 1 2 4 7309 14618 29236 21969709 43939418 87878836 160576603081 321153206162 642306412324