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21410324131 = 729711485487
BaseRepresentation
bin10011111100001001…
…111001111010100011
32001021010022011020211
4103330021321322203
5322322020333011
613500305314551
71355365516030
oct237411717243
961233264224
1021410324131
11909762a459
124196335a57
13203292c661
141071724387
1585499eb21
hex4fc279ea3

21410324131 has 16 divisors (see below), whose sum is σ = 25669232640. Its totient is φ = 17469315360.

The previous prime is 21410324129. The next prime is 21410324141. The reversal of 21410324131 is 13142301412.

It is not a de Polignac number, because 21410324131 - 21 = 21410324129 is a prime.

It is a super-2 number, since 2×214103241312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21410324141) 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, 728331 + ... + 757156.

It is an arithmetic number, because the mean of its divisors is an integer number (1604327040).

Almost surely, 221410324131 is an apocalyptic number.

21410324131 is a deficient number, since it is larger than the sum of its proper divisors (4258908509).

21410324131 is a wasteful number, since it uses less digits than its factorization.

21410324131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485594.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21410324131 its reverse (13142301412), we get a palindrome (34552625543).

The spelling of 21410324131 in words is "twenty-one billion, four hundred ten million, three hundred twenty-four thousand, one hundred thirty-one".

Divisors: 1 7 29 71 203 497 2059 14413 1485487 10398409 43079123 105469577 301553861 738287039 3058617733 21410324131