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208372936420 = 225116353149087
BaseRepresentation
bin1100001000001111111…
…1101010111011100100
3201220211212102220222201
43002003333222323210
511403221432431140
6235420351104244
721024450510235
oct3020377527344
9656755386881
10208372936420
11804090aa270
1234473812084
1316859bb931c
14a12a10708c
15564858949a
hex3083feaee4

208372936420 has 48 divisors (see below), whose sum is σ = 477441796608. Its totient is φ = 75759541760.

The previous prime is 208372936411. The next prime is 208372936439. The reversal of 208372936420 is 24639273802.

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, 1323117 + ... + 1472203.

It is an arithmetic number, because the mean of its divisors is an integer number (9946704096).

Almost surely, 2208372936420 is an apocalyptic number.

208372936420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208372936420 is an abundant number, since it is smaller than the sum of its proper divisors (269068860188).

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

208372936420 is a wasteful number, since it uses less digits than its factorization.

208372936420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155460 (or 155458 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 208372936420 in words is "two hundred eight billion, three hundred seventy-two million, nine hundred thirty-six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 6353 12706 25412 31765 63530 69883 127060 139766 149087 279532 298174 349415 596348 698830 745435 1397660 1490870 1639957 2981740 3279914 6559828 8199785 16399570 32799140 947149711 1894299422 3788598844 4735748555 9471497110 10418646821 18942994220 20837293642 41674587284 52093234105 104186468210 208372936420