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130056123 = 3431008187
BaseRepresentation
bin1111100000001…
…11111110111011
3100001201112110110
413300013332323
5231243243443
620523315403
73136313241
oct760077673
9301645413
10130056123
11674600aa
123767bb63
1320c381b2
14133b6791
15b640233
hex7c07fbb

130056123 has 8 divisors (see below), whose sum is σ = 177441088. Its totient is φ = 84687624.

The previous prime is 130056109. The next prime is 130056133. The reversal of 130056123 is 321650031.

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

It is not a de Polignac number, because 130056123 - 216 = 129990587 is a prime.

It is a super-2 number, since 2×1300561232 = 33829190259582258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 130056123.

It is not an unprimeable number, because it can be changed into a prime (130056133) 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, 503965 + ... + 504222.

It is an arithmetic number, because the mean of its divisors is an integer number (22180136).

Almost surely, 2130056123 is an apocalyptic number.

130056123 is a deficient number, since it is larger than the sum of its proper divisors (47384965).

130056123 is a wasteful number, since it uses less digits than its factorization.

130056123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008233.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 130056123 is about 11404.2151417798. The cubic root of 130056123 is about 506.6525908390.

The spelling of 130056123 in words is "one hundred thirty million, fifty-six thousand, one hundred twenty-three".

Divisors: 1 3 43 129 1008187 3024561 43352041 130056123