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20314442553 = 31719137315269
BaseRepresentation
bin10010111010110101…
…011100101100111001
31221102202012121100020
4102322311130230321
5313100444130203
613155441001053
71316260625016
oct227265345471
957382177306
1020314442553
118684a783a9
123b2b323189
131bb9891412
14da9d7870d
157dd67e153
hex4bad5cb39

20314442553 has 32 divisors (see below), whose sum is σ = 30212611200. Its totient is φ = 12065872896.

The previous prime is 20314442543. The next prime is 20314442567. The reversal of 20314442553 is 35524441302.

It is not a de Polignac number, because 20314442553 - 24 = 20314442537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20314442543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1322803 + ... + 1338071.

It is an arithmetic number, because the mean of its divisors is an integer number (944144100).

Almost surely, 220314442553 is an apocalyptic number.

It is an amenable number.

20314442553 is a deficient number, since it is larger than the sum of its proper divisors (9898168647).

20314442553 is a wasteful number, since it uses less digits than its factorization.

20314442553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16681.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 20314442553 its reverse (35524441302), we get a palindrome (55838883855).

The spelling of 20314442553 in words is "twenty billion, three hundred fourteen million, four hundred forty-two thousand, five hundred fifty-three".

Divisors: 1 3 17 19 51 57 323 969 1373 4119 15269 23341 26087 45807 70023 78261 259573 290111 443479 778719 870333 1330437 4931887 14795661 20964337 62893011 356393729 398322403 1069181187 1194967209 6771480851 20314442553