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396906007 = 1024338749
BaseRepresentation
bin10111101010000…
…100111000010111
31000122211220200111
4113222010320113
51303101443012
6103215023451
712556434241
oct2752047027
91018756614
10396906007
111940523a3
12b0b0ab87
13642ca234
143a9db091
1524ca1ba7
hex17a84e17

396906007 has 4 divisors (see below), whose sum is σ = 396955000. Its totient is φ = 396857016.

The previous prime is 396906001. The next prime is 396906017. The reversal of 396906007 is 700609693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 396906007 - 211 = 396903959 is a prime.

It is the 19923-rd Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396906001) by changing a digit.

It is a nontrivial repunit in base 19922.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9132 + ... + 29617.

It is an arithmetic number, because the mean of its divisors is an integer number (99238750).

Almost surely, 2396906007 is an apocalyptic number.

396906007 is a deficient number, since it is larger than the sum of its proper divisors (48993).

396906007 is a wasteful number, since it uses less digits than its factorization.

396906007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48992.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 396906007 is about 19922.5000188229. The cubic root of 396906007 is about 734.9016525051.

The spelling of 396906007 in words is "three hundred ninety-six million, nine hundred six thousand, seven".

Divisors: 1 10243 38749 396906007