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47485490 = 25133111783
BaseRepresentation
bin1011010100100…
…1001000110010
310022100111211212
42311021020302
544124013430
64413440122
71114422443
oct265111062
9108314755
1047485490
1124893608
1213aa0042
139ab7a30
1464412ca
15427eb95
hex2d49232

47485490 has 32 divisors (see below), whose sum is σ = 95026176. Its totient is φ = 16966080.

The previous prime is 47485469. The next prime is 47485517. The reversal of 47485490 is 9458474.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1862 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (2969568).

Almost surely, 247485490 is an apocalyptic number.

47485490 is an abundant number, since it is smaller than the sum of its proper divisors (47540686).

47485490 is a wasteful number, since it uses less digits than its factorization.

47485490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834.

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

The square root of 47485490 is about 6890.9716296035. The cubic root of 47485490 is about 362.1209418551.

The spelling of 47485490 in words is "forty-seven million, four hundred eighty-five thousand, four hundred ninety".

Divisors: 1 2 5 10 13 26 31 62 65 130 155 310 403 806 2015 4030 11783 23566 58915 117830 153179 306358 365273 730546 765895 1531790 1826365 3652730 4748549 9497098 23742745 47485490