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13631708832 = 253720285281
BaseRepresentation
bin11001011001000001…
…10101111010100000
31022012000110120001220
430230200311322200
5210404204140312
610132354455040
7661543420230
oct145440657240
938160416056
1013631708832
115865820675
122785294480
131393220301
14934607cc0
1554bb34c8c
hex32c835ea0

13631708832 has 48 divisors (see below), whose sum is σ = 40895128512. Its totient is φ = 3894773760.

The previous prime is 13631708813. The next prime is 13631708843. The reversal of 13631708832 is 23880713631.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10141969 + ... + 10143312.

It is an arithmetic number, because the mean of its divisors is an integer number (851981844).

Almost surely, 213631708832 is an apocalyptic number.

13631708832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13631708832 is an abundant number, since it is smaller than the sum of its proper divisors (27263419680).

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

13631708832 is a wasteful number, since it uses less digits than its factorization.

13631708832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20285301 (or 20285293 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 13631708832 in words is "thirteen billion, six hundred thirty-one million, seven hundred eight thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 20285281 40570562 60855843 81141124 121711686 141996967 162282248 243423372 283993934 324564496 425990901 486846744 567987868 649128992 851981802 973693488 1135975736 1703963604 1947386976 2271951472 3407927208 4543902944 6815854416 13631708832