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225707379 = 3160146993
BaseRepresentation
bin11010111010000…
…00010101110011
3120201201010022120
431131000111303
5430240114004
634221405323
75410324002
oct1535002563
9521633276
10225707379
11106451327
1263709843
13379b8481
1421d94c39
1514c363d9
hexd740573

225707379 has 8 divisors (see below), whose sum is σ = 301137552. Its totient is φ = 150374400.

The previous prime is 225707369. The next prime is 225707399. The reversal of 225707379 is 973707522.

225707379 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 225707379 - 28 = 225707123 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 225707379.

It is not an unprimeable number, because it can be changed into a prime (225707329) 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, 18694 + ... + 28299.

It is an arithmetic number, because the mean of its divisors is an integer number (37642194).

Almost surely, 2225707379 is an apocalyptic number.

225707379 is a deficient number, since it is larger than the sum of its proper divisors (75430173).

225707379 is a wasteful number, since it uses less digits than its factorization.

225707379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48597.

The product of its (nonzero) digits is 185220, while the sum is 42.

The square root of 225707379 is about 15023.5607962959. The cubic root of 225707379 is about 608.8569285973.

The spelling of 225707379 in words is "two hundred twenty-five million, seven hundred seven thousand, three hundred seventy-nine".

Divisors: 1 3 1601 4803 46993 140979 75235793 225707379