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130612410021 = 354779593181
BaseRepresentation
bin111100110100100011…
…0110011011010100101
3110111010121021220020110
41321221012303122211
54114443234110041
6140000313123233
712302461111212
oct1715106633245
9414117256213
10130612410021
1150435333915
12213919b9519
13c416a26c22
146470962b09
1535e69d3516
hex1e691b36a5

130612410021 has 8 divisors (see below), whose sum is σ = 174468254944. Its totient is φ = 86915752560.

The previous prime is 130612410013. The next prime is 130612410023. The reversal of 130612410021 is 120014216031.

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

It is not a de Polignac number, because 130612410021 - 23 = 130612410013 is a prime.

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 130612410021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130612410023) 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, 39794950 + ... + 39798231.

It is an arithmetic number, because the mean of its divisors is an integer number (21808531868).

Almost surely, 2130612410021 is an apocalyptic number.

It is an amenable number.

130612410021 is a deficient number, since it is larger than the sum of its proper divisors (43855844923).

130612410021 is an equidigital number, since it uses as much as digits as its factorization.

130612410021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79593731.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 130612410021 its reverse (120014216031), we get a palindrome (250626626052).

The spelling of 130612410021 in words is "one hundred thirty billion, six hundred twelve million, four hundred ten thousand, twenty-one".

Divisors: 1 3 547 1641 79593181 238779543 43537470007 130612410021