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675904387 = 3378232437
BaseRepresentation
bin101000010010010…
…111101110000011
31202002211111111211
4220102113232003
52341012420022
6151022550551
722515043504
oct5022275603
91662744454
10675904387
11317591a74
1216a438457
13aa053a32
1465aa4bab
153e512e77
hex28497b83

675904387 has 8 divisors (see below), whose sum is σ = 679012256. Its totient is φ = 672803712.

The previous prime is 675904367. The next prime is 675904391. The reversal of 675904387 is 783409576.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-675904387 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 675904387.

It is not an unprimeable number, because it can be changed into a prime (675904357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276133 + ... + 278569.

It is an arithmetic number, because the mean of its divisors is an integer number (84876532).

Almost surely, 2675904387 is an apocalyptic number.

675904387 is a deficient number, since it is larger than the sum of its proper divisors (3107869).

675904387 is a wasteful number, since it uses less digits than its factorization.

675904387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The square root of 675904387 is about 25998.1612234404. The cubic root of 675904387 is about 877.5969160522.

The spelling of 675904387 in words is "six hundred seventy-five million, nine hundred four thousand, three hundred eighty-seven".

Divisors: 1 337 823 2437 277351 821269 2005651 675904387