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20133879675 = 3527132950019
BaseRepresentation
bin10010110000000100…
…101001111101111011
31220222011110001122020
4102300010221331323
5312213233122200
613125510525523
71311636103440
oct226004517573
956864401566
1020133879675
1185a2060888
123a9a9668a3
131b8b351290
14d8ddb59c7
157cc8b3ea0
hex4b0129f7b

20133879675 has 48 divisors (see below), whose sum is σ = 40969877760. Its totient is φ = 8496051840.

The previous prime is 20133879607. The next prime is 20133879749. The reversal of 20133879675 is 57697833102.

It is not a de Polignac number, because 20133879675 - 28 = 20133879419 is a prime.

It is a super-2 number, since 2×201338796752 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1468185 + ... + 1481834.

It is an arithmetic number, because the mean of its divisors is an integer number (853539120).

Almost surely, 220133879675 is an apocalyptic number.

20133879675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20133879675 is an abundant number, since it is smaller than the sum of its proper divisors (20835998085).

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

20133879675 is a wasteful number, since it uses less digits than its factorization.

20133879675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950052 (or 2950047 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 20133879675 in words is "twenty billion, one hundred thirty-three million, eight hundred seventy-nine thousand, six hundred seventy-five".

Divisors: 1 3 5 7 13 15 21 25 35 39 65 75 91 105 175 195 273 325 455 525 975 1365 2275 6825 2950019 8850057 14750095 20650133 38350247 44250285 61950399 73750475 103250665 115050741 191751235 221251425 268451729 309751995 516253325 575253705 805355187 958756175 1342258645 1548759975 2876268525 4026775935 6711293225 20133879675