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475209725 = 52139136751
BaseRepresentation
bin11100010100110…
…001111111111101
31020010012011012012
4130110301333331
51433123202400
6115053221005
714530134044
oct3424617775
91203164165
10475209725
11224275111
12113191765
13775b54b3
144718155b
152babcd35
hex1c531ffd

475209725 has 12 divisors (see below), whose sum is σ = 593503680. Its totient is φ = 377430000.

The previous prime is 475209701. The next prime is 475209731. The reversal of 475209725 is 527902574.

It is not a de Polignac number, because 475209725 - 26 = 475209661 is a prime.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64901 + ... + 71850.

It is an arithmetic number, because the mean of its divisors is an integer number (49458640).

Almost surely, 2475209725 is an apocalyptic number.

It is an amenable number.

475209725 is a deficient number, since it is larger than the sum of its proper divisors (118293955).

475209725 is a wasteful number, since it uses less digits than its factorization.

475209725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136900 (or 136895 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 475209725 is about 21799.3056082069. The cubic root of 475209725 is about 780.3601914128.

The spelling of 475209725 in words is "four hundred seventy-five million, two hundred nine thousand, seven hundred twenty-five".

Divisors: 1 5 25 139 695 3475 136751 683755 3418775 19008389 95041945 475209725