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925368209 = 1675541127
BaseRepresentation
bin110111001001111…
…111111110010001
32101111020120112122
4313021333332101
53343343240314
6231453504025
731634333333
oct6711777621
92344216478
10925368209
11435389917
12219aa2015
1311993936c
148ac81453
155638d28e
hex3727ff91

925368209 has 4 divisors (see below), whose sum is σ = 930909504. Its totient is φ = 919826916.

The previous prime is 925368193. The next prime is 925368211. The reversal of 925368209 is 902863529.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 902863529 = 3724401717.

It is a cyclic number.

It is not a de Polignac number, because 925368209 - 24 = 925368193 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 925368209.

It is not an unprimeable number, because it can be changed into a prime (925368709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2770397 + ... + 2770730.

It is an arithmetic number, because the mean of its divisors is an integer number (232727376).

Almost surely, 2925368209 is an apocalyptic number.

It is an amenable number.

925368209 is a deficient number, since it is larger than the sum of its proper divisors (5541295).

925368209 is a wasteful number, since it uses less digits than its factorization.

925368209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541294.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 925368209 is about 30419.8653678809. The cubic root of 925368209 is about 974.4768471982.

The spelling of 925368209 in words is "nine hundred twenty-five million, three hundred sixty-eight thousand, two hundred nine".

Divisors: 1 167 5541127 925368209