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390724713 = 32233160889
BaseRepresentation
bin10111010010011…
…111110001101001
31000020012212112200
4113102133301221
51300011142323
6102434330413
712453051051
oct2722376151
91006185480
10390724713
11190610295
12aaa29a09
1362c44872
1439c6c561
1524480443
hex1749fc69

390724713 has 24 divisors (see below), whose sum is σ = 607925760. Its totient is φ = 241116480.

The previous prime is 390724709. The next prime is 390724729. The reversal of 390724713 is 317427093.

It is not a de Polignac number, because 390724713 - 22 = 390724709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (390724783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24028 + ... + 36861.

It is an arithmetic number, because the mean of its divisors is an integer number (25330240).

Almost surely, 2390724713 is an apocalyptic number.

It is an amenable number.

390724713 is a deficient number, since it is larger than the sum of its proper divisors (217201047).

390724713 is a wasteful number, since it uses less digits than its factorization.

390724713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60949 (or 60946 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 390724713 is about 19766.7577766309. The cubic root of 390724713 is about 731.0666292787.

The spelling of 390724713 in words is "three hundred ninety million, seven hundred twenty-four thousand, seven hundred thirteen".

Divisors: 1 3 9 23 31 69 93 207 279 713 2139 6417 60889 182667 548001 1400447 1887559 4201341 5662677 12604023 16988031 43413857 130241571 390724713