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20614613025 = 3522923171031
BaseRepresentation
bin10011001100101110…
…100000100000100001
31222012200000211211010
4103030232200200201
5314204320104100
613245322411133
71326564214416
oct231456404041
958180024733
1020614613025
118819458976
123bb3960aa9
131c36b1b996
14dd7b9410d
15809bc3750
hex4ccba0821

20614613025 has 72 divisors (see below), whose sum is σ = 35444320704. Its totient is φ = 10571590400.

The previous prime is 20614613023. The next prime is 20614613077. The reversal of 20614613025 is 52031641602.

It is not a de Polignac number, because 20614613025 - 21 = 20614613023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20614612983 and 20614613001.

It is not an unprimeable number, because it can be changed into a prime (20614613021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 19994260 + ... + 19995290.

It is an arithmetic number, because the mean of its divisors is an integer number (492282232).

Almost surely, 220614613025 is an apocalyptic number.

20614613025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20614613025 is a deficient number, since it is larger than the sum of its proper divisors (14829707679).

20614613025 is a wasteful number, since it uses less digits than its factorization.

20614613025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419 (or 1385 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 20614613025 in words is "twenty billion, six hundred fourteen million, six hundred thirteen thousand, twenty-five".

Divisors: 1 3 5 15 25 29 75 87 145 317 435 725 841 951 1031 1585 2175 2523 3093 4205 4755 5155 7925 9193 12615 15465 21025 23775 25775 27579 29899 45965 63075 77325 89697 137895 149495 229825 266597 326827 448485 689475 747475 799791 867071 980481 1332985 1634135 2242425 2601213 3998955 4335355 4902405 6664925 8170675 9477983 13006065 19994775 21676775 24512025 28433949 47389915 65030325 142169745 236949575 274861507 710848725 824584521 1374307535 4122922605 6871537675 20614613025