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131313202 = 2173862153
BaseRepresentation
bin1111101001110…
…10111000110010
3100011002101211221
413310322320302
5232104010302
621010255254
73153100216
oct764727062
9304071757
10131313202
1168139609
1237b8752a
1321288427
1413622946
15b7dc937
hex7d3ae32

131313202 has 8 divisors (see below), whose sum is σ = 208556316. Its totient is φ = 61794432.

The previous prime is 131313197. The next prime is 131313229. The reversal of 131313202 is 202313131.

It can be written as a sum of positive squares in 2 ways, for example, as 129299641 + 2013561 = 11371^2 + 1419^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931043 + ... + 1931110.

Almost surely, 2131313202 is an apocalyptic number.

131313202 is a deficient number, since it is larger than the sum of its proper divisors (77243114).

131313202 is a wasteful number, since it uses less digits than its factorization.

131313202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862172.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131313202 is about 11459.1972668246. The cubic root of 131313202 is about 508.2797377398.

Adding to 131313202 its reverse (202313131), we get a palindrome (333626333).

The spelling of 131313202 in words is "one hundred thirty-one million, three hundred thirteen thousand, two hundred two".

Divisors: 1 2 17 34 3862153 7724306 65656601 131313202