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131210202 = 2321868367
BaseRepresentation
bin1111101001000…
…01101111011010
3100010220011120010
413310201233122
5232042211302
621004142350
73152161014
oct764415732
9303804503
10131210202
1168079192
1237b379b6
1321250596
14135d71b4
15b7bc16c
hex7d21bda

131210202 has 8 divisors (see below), whose sum is σ = 262420416. Its totient is φ = 43736732.

The previous prime is 131210173. The next prime is 131210213. The reversal of 131210202 is 202012131.

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

131210202 is an admirable number.

It is a super-2 number, since 2×1312102022 = 34432234217761608, which contains 22 as substring.

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, 10934178 + ... + 10934189.

It is an arithmetic number, because the mean of its divisors is an integer number (32802552).

Almost surely, 2131210202 is an apocalyptic number.

131210202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131210202 is a wasteful number, since it uses less digits than its factorization.

131210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21868372.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 131210202 is about 11454.7021785815. The cubic root of 131210202 is about 508.1468074469.

Adding to 131210202 its reverse (202012131), we get a palindrome (333222333).

The spelling of 131210202 in words is "one hundred thirty-one million, two hundred ten thousand, two hundred two".

Divisors: 1 2 3 6 21868367 43736734 65605101 131210202