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20617362325 = 527977120587
BaseRepresentation
bin10011001100111000…
…111111101110010101
31222012212012112011001
4103030320333232111
5314211021043300
613245501343301
71326626455030
oct231470775625
958185175131
1020617362325
11881aa6651a
123bb4867b31
131c375721a1
14dd82ac017
1580a06816a
hex4cce3fb95

20617362325 has 24 divisors (see below), whose sum is σ = 29247895872. Its totient is φ = 14123032320.

The previous prime is 20617362313. The next prime is 20617362371. The reversal of 20617362325 is 52326371602.

It is a de Polignac number, because none of the positive numbers 2k-20617362325 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 110682 + ... + 231268.

It is an arithmetic number, because the mean of its divisors is an integer number (1218662328).

Almost surely, 220617362325 is an apocalyptic number.

20617362325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20617362325 is a deficient number, since it is larger than the sum of its proper divisors (8630533547).

20617362325 is a wasteful number, since it uses less digits than its factorization.

20617362325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121581 (or 121576 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 20617362325 in words is "twenty billion, six hundred seventeen million, three hundred sixty-two thousand, three hundred twenty-five".

Divisors: 1 5 7 25 35 175 977 4885 6839 24425 34195 120587 170975 602935 844109 3014675 4220545 21102725 117813499 589067495 824694493 2945337475 4123472465 20617362325