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20152124327 = 7115112591493
BaseRepresentation
bin10010110001001010…
…010000001110100111
31221000102202222121002
4102301022100032213
5312232420434302
613131401543515
71312250142026
oct226112201647
957012688532
1020152124327
118601392305
123aa4aa4b9b
131b9206b72a
14d925a48bd
157ce2b9c02
hex4b12903a7

20152124327 has 16 divisors (see below), whose sum is σ = 20601423360. Its totient is φ = 19707828000.

The previous prime is 20152124297. The next prime is 20152124351. The reversal of 20152124327 is 72342125102.

It is a cyclic number.

It is not a de Polignac number, because 20152124327 - 220 = 20151075751 is a prime.

It is a super-2 number, since 2×201521243272 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20152124327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20152124387) 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, 13496993 + ... + 13498485.

It is an arithmetic number, because the mean of its divisors is an integer number (1287588960).

Almost surely, 220152124327 is an apocalyptic number.

20152124327 is a deficient number, since it is larger than the sum of its proper divisors (449299033).

20152124327 is a wasteful number, since it uses less digits than its factorization.

20152124327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 20152124327 its reverse (72342125102), we get a palindrome (92494249429).

The spelling of 20152124327 in words is "twenty billion, one hundred fifty-two million, one hundred twenty-four thousand, three hundred twenty-seven".

Divisors: 1 71 151 1259 1493 10721 89389 106003 190109 225443 1879687 13497739 16006453 133457777 283832737 20152124327