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207925042820 = 225113613261587
BaseRepresentation
bin1100000110100101001…
…1000101111010000100
3201212200122122120110212
43001221103011322010
511401312302332240
6235304111134552
721010401463055
oct3015123057204
9655618576425
10207925042820
11801a92a2170
1234369814458
13167b8179321
14a0c683672c
15561e0b5165
hex30694c5e84

207925042820 has 48 divisors (see below), whose sum is σ = 476471032128. Its totient is φ = 75587890560.

The previous prime is 207925042817. The next prime is 207925042837. The reversal of 207925042820 is 28240529702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664067 + ... + 925653.

It is an arithmetic number, because the mean of its divisors is an integer number (9926479836).

Almost surely, 2207925042820 is an apocalyptic number.

207925042820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207925042820 is an abundant number, since it is smaller than the sum of its proper divisors (268545989308).

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

207925042820 is a wasteful number, since it uses less digits than its factorization.

207925042820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265220 (or 265218 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 207925042820 in words is "two hundred seven billion, nine hundred twenty-five million, forty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 3613 7226 14452 18065 36130 39743 72260 79486 158972 198715 261587 397430 523174 794860 1046348 1307935 2615870 2877457 5231740 5754914 11509828 14387285 28774570 57549140 945113831 1890227662 3780455324 4725569155 9451138310 10396252141 18902276620 20792504282 41585008564 51981260705 103962521410 207925042820