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47965013 = 382112553
BaseRepresentation
bin1011011011111…
…0001101010101
310100020212121222
42312332031111
544234340023
64432020125
71121460455
oct266761525
9110225558
1047965013
1125090908
1214091645
139c25085
146527d65
154326cc8
hex2dbe355

47965013 has 4 divisors (see below), whose sum is σ = 47981388. Its totient is φ = 47948640.

The previous prime is 47965009. The next prime is 47965031. The reversal of 47965013 is 31056974.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46267204 + 1697809 = 6802^2 + 1303^2 .

It is a cyclic number.

It is not a de Polignac number, because 47965013 - 22 = 47965009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47965003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2456 + ... + 10097.

It is an arithmetic number, because the mean of its divisors is an integer number (11995347).

Almost surely, 247965013 is an apocalyptic number.

It is an amenable number.

47965013 is a deficient number, since it is larger than the sum of its proper divisors (16375).

47965013 is a wasteful number, since it uses less digits than its factorization.

47965013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16374.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 47965013 is about 6925.6778007643. The cubic root of 47965013 is about 363.3357976621.

The spelling of 47965013 in words is "forty-seven million, nine hundred sixty-five thousand, thirteen".

Divisors: 1 3821 12553 47965013