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47490384 = 2431758199
BaseRepresentation
bin1011010100101…
…0010101010000
310022100202120010
42311022111100
544124143014
64413514520
71114442634
oct265122520
9108322503
1047490384
1124897257
1213aa2a40
139aba026
146442dc4
154281359
hex2d4a550

47490384 has 40 divisors (see below), whose sum is σ = 129902400. Its totient is φ = 14898688.

The previous prime is 47490383. The next prime is 47490413. The reversal of 47490384 is 48309474.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47490383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 28284 + ... + 29915.

It is an arithmetic number, because the mean of its divisors is an integer number (3247560).

Almost surely, 247490384 is an apocalyptic number.

It is an amenable number.

47490384 is an abundant number, since it is smaller than the sum of its proper divisors (82412016).

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

47490384 is a wasteful number, since it uses less digits than its factorization.

47490384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58227 (or 58221 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 47490384 is about 6891.3267227726. The cubic root of 47490384 is about 362.1333818588.

It can be divided in two parts, 47490 and 384, that added together give a palindrome (47874).

The spelling of 47490384 in words is "forty-seven million, four hundred ninety thousand, three hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 58199 116398 174597 232796 349194 465592 698388 931184 989383 1396776 1978766 2793552 2968149 3957532 5936298 7915064 11872596 15830128 23745192 47490384