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672869475 = 32522990531
BaseRepresentation
bin101000000110110…
…010110001100011
31201220010022101200
4220012302301203
52334223310400
6150433532243
722450203405
oct5006626143
91656108350
10672869475
113158a9883
12169414083
13a9530525
1465514b75
153e113b00
hex281b2c63

672869475 has 18 divisors (see below), whose sum is σ = 1205184396. Its totient is φ = 358863600.

The previous prime is 672869473. The next prime is 672869489. The reversal of 672869475 is 574968276.

It is not a de Polignac number, because 672869475 - 21 = 672869473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (672869471) 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 17 ways as a sum of consecutive naturals, for example, 1495041 + ... + 1495490.

Almost surely, 2672869475 is an apocalyptic number.

672869475 is a deficient number, since it is larger than the sum of its proper divisors (532314921).

672869475 is a wasteful number, since it uses less digits than its factorization.

672869475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2990547 (or 2990539 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 672869475 is about 25939.7277356567. The cubic root of 672869475 is about 876.2814312804.

The spelling of 672869475 in words is "six hundred seventy-two million, eight hundred sixty-nine thousand, four hundred seventy-five".

Divisors: 1 3 5 9 15 25 45 75 225 2990531 8971593 14952655 26914779 44857965 74763275 134573895 224289825 672869475