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130620620312 = 23713179423929
BaseRepresentation
bin111100110100110011…
…0000111111000011000
3110111011011202000122022
41321221212013320120
54120002334322222
6140001205114012
712302620645010
oct1715146077030
9414134660568
10130620620312
1150439a31386
12213946b8908
13c41863cca0
146471a9cc40
1535e75a6042
hex1e69987e18

130620620312 has 32 divisors (see below), whose sum is σ = 301432202400. Its totient is φ = 51674091264.

The previous prime is 130620620311. The next prime is 130620620341. The reversal of 130620620312 is 213026026031.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130620620311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89711237 + ... + 89712692.

It is an arithmetic number, because the mean of its divisors is an integer number (9419756325).

Almost surely, 2130620620312 is an apocalyptic number.

It is an amenable number.

130620620312 is an abundant number, since it is smaller than the sum of its proper divisors (170811582088).

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

130620620312 is a wasteful number, since it uses less digits than its factorization.

130620620312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179423955 (or 179423951 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 130620620312 its reverse (213026026031), we get a palindrome (343646646343).

The spelling of 130620620312 in words is "one hundred thirty billion, six hundred twenty million, six hundred twenty thousand, three hundred twelve".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 182 364 728 179423929 358847858 717695716 1255967503 1435391432 2332511077 2511935006 4665022154 5023870012 9330044308 10047740024 16327577539 18660088616 32655155078 65310310156 130620620312