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47507085 = 3251055713
BaseRepresentation
bin1011010100111…
…0011010001101
310022101121110200
42311032122031
544130211320
64414124113
71114542423
oct265163215
9108347420
1047507085
11248a885a
1213ab0639
139ac4802
146449113
154286290
hex2d4e68d

47507085 has 12 divisors (see below), whose sum is σ = 82345692. Its totient is φ = 25337088.

The previous prime is 47507081. The next prime is 47507099. The reversal of 47507085 is 58070574.

It can be written as a sum of positive squares in 2 ways, for example, as 19660356 + 27846729 = 4434^2 + 5277^2 .

It is not a de Polignac number, because 47507085 - 22 = 47507081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47507081) 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, 527812 + ... + 527901.

It is an arithmetic number, because the mean of its divisors is an integer number (6862141).

Almost surely, 247507085 is an apocalyptic number.

47507085 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47507085 is a deficient number, since it is larger than the sum of its proper divisors (34838607).

47507085 is a wasteful number, since it uses less digits than its factorization.

47507085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055724 (or 1055721 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 47507085 is about 6892.5383568030. The cubic root of 47507085 is about 362.1758275097.

The spelling of 47507085 in words is "forty-seven million, five hundred seven thousand, eighty-five".

Divisors: 1 3 5 9 15 45 1055713 3167139 5278565 9501417 15835695 47507085