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120685225 = 524827409
BaseRepresentation
bin1110011000110…
…00001010101001
322102002110000011
413030120022221
5221343411400
615550411521
72663543653
oct714301251
9272073004
10120685225
116213a661
1234500ba1
131c006a9b
14120576d3
15a8dd8ba
hex73182a9

120685225 has 6 divisors (see below), whose sum is σ = 149649710. Its totient is φ = 96548160.

The previous prime is 120685199. The next prime is 120685241. The reversal of 120685225 is 522586021.

It can be written as a sum of positive squares in 3 ways, for example, as 2027776 + 118657449 = 1424^2 + 10893^2 .

It is not a de Polignac number, because 120685225 - 217 = 120554153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2413680 + ... + 2413729.

Almost surely, 2120685225 is an apocalyptic number.

It is an amenable number.

120685225 is a deficient number, since it is larger than the sum of its proper divisors (28964485).

120685225 is an equidigital number, since it uses as much as digits as its factorization.

120685225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4827419 (or 4827414 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 120685225 is about 10985.6827279874. The cubic root of 120685225 is about 494.1794725074.

The spelling of 120685225 in words is "one hundred twenty million, six hundred eighty-five thousand, two hundred twenty-five".

Divisors: 1 5 25 4827409 24137045 120685225