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131210193 = 3231901597
BaseRepresentation
bin1111101001000…
…01101111010001
3100010220011112210
413310201233101
5232042211233
621004142333
73152161002
oct764415721
9303804483
10131210193
1168079184
1237b379a9
132125058a
14135d71a9
15b7bc163
hex7d21bd1

131210193 has 8 divisors (see below), whose sum is σ = 182553408. Its totient is φ = 83670224.

The previous prime is 131210173. The next prime is 131210213. The reversal of 131210193 is 391012131.

It is an interprime number because it is at equal distance from previous prime (131210173) and next prime (131210213).

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

It is a cyclic number.

It is not a de Polignac number, because 131210193 - 25 = 131210161 is a prime.

It is a super-2 number, since 2×1312101932 = 34432229494194498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131210113) 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, 950730 + ... + 950867.

It is an arithmetic number, because the mean of its divisors is an integer number (22819176).

Almost surely, 2131210193 is an apocalyptic number.

It is an amenable number.

131210193 is a deficient number, since it is larger than the sum of its proper divisors (51343215).

131210193 is a wasteful number, since it uses less digits than its factorization.

131210193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901623.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 131210193 is about 11454.7017857297. The cubic root of 131210193 is about 508.1467958286.

The spelling of 131210193 in words is "one hundred thirty-one million, two hundred ten thousand, one hundred ninety-three".

Divisors: 1 3 23 69 1901597 5704791 43736731 131210193