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2020120131 = 38956913297
BaseRepresentation
bin111100001101000…
…1001011001000011
312012210012201212010
41320122021121003
513114122321011
6532242104003
7101026511031
oct17032113103
95183181763
102020120131
1194733a177
1248464b003
132626a0373
14152415551
15bc5391a6
hex78689643

2020120131 has 16 divisors (see below), whose sum is σ = 2728749600. Its totient is φ = 1329174528.

The previous prime is 2020120127. The next prime is 2020120159. The reversal of 2020120131 is 1310210202.

It is not a de Polignac number, because 2020120131 - 22 = 2020120127 is a prime.

It is a super-2 number, since 2×20201201312 = 8161770687342914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2020120031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145275 + ... + 158571.

It is an arithmetic number, because the mean of its divisors is an integer number (170546850).

Almost surely, 22020120131 is an apocalyptic number.

2020120131 is a deficient number, since it is larger than the sum of its proper divisors (708629469).

2020120131 is a wasteful number, since it uses less digits than its factorization.

2020120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13958.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2020120131 is about 44945.7465284536. The cubic root of 2020120131 is about 1264.1319235120.

Adding to 2020120131 its reverse (1310210202), we get a palindrome (3330330333).

The spelling of 2020120131 in words is "two billion, twenty million, one hundred twenty thousand, one hundred thirty-one".

Divisors: 1 3 89 267 569 1707 13297 39891 50641 151923 1183433 3550299 7565993 22697979 673373377 2020120131