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47699680 = 255742589
BaseRepresentation
bin1011010111110…
…1011011100000
310022202101122211
42311331123200
544202342210
64422211504
71116304060
oct265753340
9108671584
1047699680
1124a1a526
1213b83b94
139b61382
1464993a0
1542c338a
hex2d7d6e0

47699680 has 48 divisors (see below), whose sum is σ = 128792160. Its totient is φ = 16353792.

The previous prime is 47699651. The next prime is 47699681. The reversal of 47699680 is 8699674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47699681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20175 + ... + 22414.

It is an arithmetic number, because the mean of its divisors is an integer number (2683170).

Almost surely, 247699680 is an apocalyptic number.

47699680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47699680 is an abundant number, since it is smaller than the sum of its proper divisors (81092480).

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

47699680 is a wasteful number, since it uses less digits than its factorization.

47699680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42611 (or 42603 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 47699680 is about 6906.4954933743. The cubic root of 47699680 is about 362.6645911310.

The spelling of 47699680 in words is "forty-seven million, six hundred ninety-nine thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 1120 42589 85178 170356 212945 298123 340712 425890 596246 681424 851780 1192492 1362848 1490615 1703560 2384984 2981230 3407120 4769968 5962460 6814240 9539936 11924920 23849840 47699680