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47120313 = 315706771
BaseRepresentation
bin1011001110111…
…1111110111001
310021122221220210
42303233332321
544030322223
64401541333
71111342002
oct263577671
9107587823
1047120313
1124664209
1213944849
1399ba756
1463881a9
15420b893
hex2ceffb9

47120313 has 4 divisors (see below), whose sum is σ = 62827088. Its totient is φ = 31413540.

The previous prime is 47120299. The next prime is 47120329. The reversal of 47120313 is 31302174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 47120313 - 214 = 47103929 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47120313.

It is not an unprimeable number, because it can be changed into a prime (47120393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7853383 + ... + 7853388.

It is an arithmetic number, because the mean of its divisors is an integer number (15706772).

Almost surely, 247120313 is an apocalyptic number.

It is an amenable number.

47120313 is a deficient number, since it is larger than the sum of its proper divisors (15706775).

47120313 is a wasteful number, since it uses less digits than its factorization.

47120313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706774.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 47120313 is about 6864.4237194392. The cubic root of 47120313 is about 361.1902808735.

Adding to 47120313 its reverse (31302174), we get a palindrome (78422487).

The spelling of 47120313 in words is "forty-seven million, one hundred twenty thousand, three hundred thirteen".

Divisors: 1 3 15706771 47120313