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131425202 = 265712601
BaseRepresentation
bin1111101010101…
…10001110110010
3100011022002111002
413311112032302
5232121101302
621012522002
73154044566
oct765261662
9304262432
10131425202
1168205777
1238020302
13212c73bc
14136516a6
15b810c02
hex7d563b2

131425202 has 4 divisors (see below), whose sum is σ = 197137806. Its totient is φ = 65712600.

The previous prime is 131425199. The next prime is 131425237. The reversal of 131425202 is 202524131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 202524131 = 238805397.

It can be written as a sum of positive squares in only one way, i.e., 129982801 + 1442401 = 11401^2 + 1201^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32856299 + ... + 32856302.

Almost surely, 2131425202 is an apocalyptic number.

131425202 is a deficient number, since it is larger than the sum of its proper divisors (65712604).

131425202 is an equidigital number, since it uses as much as digits as its factorization.

131425202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65712603.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 131425202 is about 11464.0831294962. The cubic root of 131425202 is about 508.4242044361.

Adding to 131425202 its reverse (202524131), we get a palindrome (333949333).

The spelling of 131425202 in words is "one hundred thirty-one million, four hundred twenty-five thousand, two hundred two".

Divisors: 1 2 65712601 131425202