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47039808 = 263337727
BaseRepresentation
bin1011001101110…
…0010101000000
310021111212111010
42303130111000
544020233213
64400120520
71110555204
oct263342500
9107455433
1047039808
1124609782
1213906140
13998cc0a
146366b04
1541e2ac3
hex2cdc540

47039808 has 56 divisors (see below), whose sum is σ = 125000512. Its totient is φ = 15611904.

The previous prime is 47039789. The next prime is 47039849. The reversal of 47039808 is 80893074.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 64341 + ... + 65067.

It is an arithmetic number, because the mean of its divisors is an integer number (2232152).

Almost surely, 247039808 is an apocalyptic number.

47039808 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47039808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62500256).

47039808 is an abundant number, since it is smaller than the sum of its proper divisors (77960704).

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

47039808 is a wasteful number, since it uses less digits than its factorization.

47039808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079 (or 1069 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 47039808 is about 6858.5572826944. The cubic root of 47039808 is about 360.9844658923.

The spelling of 47039808 in words is "forty-seven million, thirty-nine thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 192 337 674 727 1011 1348 1454 2022 2181 2696 2908 4044 4362 5392 5816 8088 8724 10784 11632 16176 17448 21568 23264 32352 34896 46528 64704 69792 139584 244999 489998 734997 979996 1469994 1959992 2939988 3919984 5879976 7839968 11759952 15679936 23519904 47039808