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131030192 = 248189387
BaseRepresentation
bin1111100111101…
…01110010110000
3100010120000122002
413303311302300
5232020431232
621000233132
73150511136
oct763656260
9303500562
10131030192
1167a65a17
1237a6b7a8
13211b9677
141358b756
15b783b62
hex7cf5cb0

131030192 has 10 divisors (see below), whose sum is σ = 253871028. Its totient is φ = 65515088.

The previous prime is 131030171. The next prime is 131030197. The reversal of 131030192 is 291030131.

It is a super-2 number, since 2×1310301922 = 34337822431113728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131030197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4094678 + ... + 4094709.

Almost surely, 2131030192 is an apocalyptic number.

It is an amenable number.

131030192 is a deficient number, since it is larger than the sum of its proper divisors (122840836).

131030192 is an equidigital number, since it uses as much as digits as its factorization.

131030192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8189395 (or 8189389 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 131030192 is about 11446.8420099170. The cubic root of 131030192 is about 507.9143220459.

The spelling of 131030192 in words is "one hundred thirty-one million, thirty thousand, one hundred ninety-two".

Divisors: 1 2 4 8 16 8189387 16378774 32757548 65515096 131030192