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147213913 = 7115336073
BaseRepresentation
bin10001100011001…
…00111001011001
3101021000020112011
420301210321121
5300141321123
622335145521
73435204040
oct1061447131
9337006464
10147213913
1176109aa0
12413752a1
1324664a32
14157a1557
15cdcde0d
hex8c64e59

147213913 has 16 divisors (see below), whose sum is σ = 187007616. Its totient is φ = 112544640.

The previous prime is 147213907. The next prime is 147213943. The reversal of 147213913 is 319312741.

It is a cyclic number.

It is not a de Polignac number, because 147213913 - 29 = 147213401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147213943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13956 + ... + 22117.

It is an arithmetic number, because the mean of its divisors is an integer number (11687976).

Almost surely, 2147213913 is an apocalyptic number.

It is an amenable number.

147213913 is a deficient number, since it is larger than the sum of its proper divisors (39793703).

147213913 is a wasteful number, since it uses less digits than its factorization.

147213913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36144.

The product of its digits is 4536, while the sum is 31.

The square root of 147213913 is about 12133.1740694676. The cubic root of 147213913 is about 528.0190833801.

The spelling of 147213913 in words is "one hundred forty-seven million, two hundred thirteen thousand, nine hundred thirteen".

Divisors: 1 7 11 53 77 371 583 4081 36073 252511 396803 1911869 2777621 13383083 21030559 147213913