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20475343320 = 23351710036933
BaseRepresentation
bin10011000100011011…
…001111000111011000
31221211221222012200220
4103010123033013120
5313413141441240
613223425400040
71323253355325
oct230433170730
957757865626
1020475343320
118757885543
123b75199020
131c14008b83
14dc349db4c
157ec8635d0
hex4c46cf1d8

20475343320 has 64 divisors (see below), whose sum is σ = 65039332320. Its totient is φ = 5138909184.

The previous prime is 20475343249. The next prime is 20475343321. The reversal of 20475343320 is 2334357402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20475343321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5016427 + ... + 5020506.

Almost surely, 220475343320 is an apocalyptic number.

20475343320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20475343320 is an abundant number, since it is smaller than the sum of its proper divisors (44563989000).

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

20475343320 is a wasteful number, since it uses less digits than its factorization.

20475343320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10036964 (or 10036960 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 33.

The spelling of 20475343320 in words is "twenty billion, four hundred seventy-five million, three hundred forty-three thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 120 136 170 204 255 340 408 510 680 1020 2040 10036933 20073866 30110799 40147732 50184665 60221598 80295464 100369330 120443196 150553995 170627861 200738660 240886392 301107990 341255722 401477320 511883583 602215980 682511444 853139305 1023767166 1204431960 1365022888 1706278610 2047534332 2559417915 3412557220 4095068664 5118835830 6825114440 10237671660 20475343320