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120031002130 = 2513923315401
BaseRepresentation
bin110111111001001100…
…1111011111000010010
3102110211011111200102111
41233302121323320102
53431310414032010
6131050320535534
711446323453424
oct1576231737022
9373734450374
10120031002130
11469a540a516
121b31a1815aa
13b41b750520
145b494d6814
1531c7a7b58a
hex1bf267be12

120031002130 has 16 divisors (see below), whose sum is σ = 232675481304. Its totient is φ = 44319139200.

The previous prime is 120031002073. The next prime is 120031002181. The reversal of 120031002130 is 31200130021.

It can be written as a sum of positive squares in 4 ways, for example, as 42539475001 + 77491527129 = 206251^2 + 278373^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 120031002130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461657571 + ... + 461657830.

Almost surely, 2120031002130 is an apocalyptic number.

120031002130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120031002130 is a deficient number, since it is larger than the sum of its proper divisors (112644479174).

120031002130 is a wasteful number, since it uses less digits than its factorization.

120031002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923315421.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 120031002130 its reverse (31200130021), we get a palindrome (151231132151).

The spelling of 120031002130 in words is "one hundred twenty billion, thirty-one million, two thousand, one hundred thirty".

Divisors: 1 2 5 10 13 26 65 130 923315401 1846630802 4616577005 9233154010 12003100213 24006200426 60015501065 120031002130