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20314443474 = 23213432018927
BaseRepresentation
bin10010111010110101…
…011100111011010010
31221102202012122121100
4102322311130323102
5313100444142344
613155441005230
71316260630503
oct227265347322
957382178540
1020314443474
118684a79066
123b2b323816
131bb9891970
14da9d78baa
157dd67e569
hex4bad5ced2

20314443474 has 48 divisors (see below), whose sum is σ = 48502726272. Its totient is φ = 6105232224.

The previous prime is 20314443449. The next prime is 20314443491. The reversal of 20314443474 is 47434441302.

20314443474 is a `hidden beast` number, since 2 + 0 + 3 + 144 + 43 + 474 = 666.

It is a super-2 number, since 2×203144434742 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 999402 + ... + 1019525.

It is an arithmetic number, because the mean of its divisors is an integer number (1010473464).

Almost surely, 220314443474 is an apocalyptic number.

20314443474 is an abundant number, since it is smaller than the sum of its proper divisors (28188282798).

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

20314443474 is a wasteful number, since it uses less digits than its factorization.

20314443474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018991 (or 2018988 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 36.

Adding to 20314443474 its reverse (47434441302), we get a palindrome (67748884776).

The spelling of 20314443474 in words is "twenty billion, three hundred fourteen million, four hundred forty-three thousand, four hundred seventy-four".

Divisors: 1 2 3 6 9 13 18 26 39 43 78 86 117 129 234 258 387 559 774 1118 1677 3354 5031 10062 2018927 4037854 6056781 12113562 18170343 26246051 36340686 52492102 78738153 86813861 157476306 173627722 236214459 260441583 472428918 520883166 781324749 1128580193 1562649498 2257160386 3385740579 6771481158 10157221737 20314443474