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47428980 = 22351746499
BaseRepresentation
bin1011010011101…
…1010101110100
310022020122022220
42310323111310
544120211410
64412322340
71114065624
oct264732564
9108218286
1047428980
1124855105
1213a733b0
139a980b1
146428884
15426d070
hex2d3b574

47428980 has 48 divisors (see below), whose sum is σ = 140616000. Its totient is φ = 11903488.

The previous prime is 47428933. The next prime is 47428981. The reversal of 47428980 is 8982474.

47428980 = T349 + T350 + ... + T688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47428981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22230 + ... + 24269.

It is an arithmetic number, because the mean of its divisors is an integer number (2929500).

Almost surely, 247428980 is an apocalyptic number.

It is an amenable number.

47428980 is an abundant number, since it is smaller than the sum of its proper divisors (93187020).

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

47428980 is a wasteful number, since it uses less digits than its factorization.

47428980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46528 (or 46526 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 47428980 is about 6886.8701163881. The cubic root of 47428980 is about 361.9772377658.

The spelling of 47428980 in words is "forty-seven million, four hundred twenty-eight thousand, nine hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 46499 92998 139497 185996 232495 278994 464990 557988 697485 790483 929980 1394970 1580966 2371449 2789940 3161932 3952415 4742898 7904830 9485796 11857245 15809660 23714490 47428980