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20031344124 = 223111039914593
BaseRepresentation
bin10010101001111101…
…100000110111111100
31220201000111201022020
4102221331200313330
5312011011002444
613111405120140
71306252421121
oct225175406774
956630451266
1020031344124
11854a198360
123a70559050
131b7303065c
14d80524748
157c38ad119
hex4a9f60dfc

20031344124 has 48 divisors (see below), whose sum is σ = 50997273600. Its totient is φ = 6069104640.

The previous prime is 20031344101. The next prime is 20031344131. The reversal of 20031344124 is 42144313002.

It is a junction number, because it is equal to n+sod(n) for n = 20031344094 and 20031344103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1365372 + ... + 1379964.

It is an arithmetic number, because the mean of its divisors is an integer number (1062443200).

Almost surely, 220031344124 is an apocalyptic number.

It is an amenable number.

20031344124 is an abundant number, since it is smaller than the sum of its proper divisors (30965929476).

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

20031344124 is a wasteful number, since it uses less digits than its factorization.

20031344124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25010 (or 25008 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20031344124 its reverse (42144313002), we get a palindrome (62175657126).

The spelling of 20031344124 in words is "twenty billion, thirty-one million, three hundred forty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 11 12 22 33 44 66 132 10399 14593 20798 29186 31197 41596 43779 58372 62394 87558 114389 124788 160523 175116 228778 321046 343167 457556 481569 642092 686334 963138 1372668 1926276 151752607 303505214 455257821 607010428 910515642 1669278677 1821031284 3338557354 5007836031 6677114708 10015672062 20031344124