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47030739 = 372319937
BaseRepresentation
bin1011001101101…
…0000111010011
310021111102001020
42303122013103
544014440424
64400010523
71110516600
oct263320723
9107442036
1047030739
1124602988
1213900a43
139988a52
1463636a7
1541e0079
hex2cda1d3

47030739 has 12 divisors (see below), whose sum is σ = 72945864. Its totient is φ = 26874624.

The previous prime is 47030723. The next prime is 47030749. The reversal of 47030739 is 93703074.

It is not a de Polignac number, because 47030739 - 24 = 47030723 is a prime.

It is a super-2 number, since 2×470307392 = 4423780821772242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47030749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159822 + ... + 160115.

It is an arithmetic number, because the mean of its divisors is an integer number (6078822).

Almost surely, 247030739 is an apocalyptic number.

47030739 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47030739 is a deficient number, since it is larger than the sum of its proper divisors (25915125).

47030739 is a wasteful number, since it uses less digits than its factorization.

47030739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319954 (or 319947 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 47030739 is about 6857.8961059497. The cubic root of 47030739 is about 360.9612658364.

The spelling of 47030739 in words is "forty-seven million, thirty thousand, seven hundred thirty-nine".

Divisors: 1 3 7 21 49 147 319937 959811 2239559 6718677 15676913 47030739