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20204202525 = 35213431393467
BaseRepresentation
bin10010110100010000…
…111010101000011101
31221011001202211110020
4102310100322220131
5312334233440100
613140502102353
71313451613353
oct226420725035
957131684406
1020204202525
118628822441
123aba41a9b9
131b9caa3a30
14d9947d7d3
157d3b555a0
hex4b443aa1d

20204202525 has 96 divisors (see below), whose sum is σ = 37085959680. Its totient is φ = 9642689280.

The previous prime is 20204202511. The next prime is 20204202533. The reversal of 20204202525 is 52520240202.

It is a happy number.

It is not a de Polignac number, because 20204202525 - 25 = 20204202493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20204202495 and 20204202504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5825842 + ... + 5829308.

It is an arithmetic number, because the mean of its divisors is an integer number (386312080).

Almost surely, 220204202525 is an apocalyptic number.

20204202525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20204202525 is a deficient number, since it is larger than the sum of its proper divisors (16881757155).

20204202525 is a wasteful number, since it uses less digits than its factorization.

20204202525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3675 (or 3670 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

Adding to 20204202525 its reverse (52520240202), we get a palindrome (72724442727).

The spelling of 20204202525 in words is "twenty billion, two hundred four million, two hundred two thousand, five hundred twenty-five".

Divisors: 1 3 5 13 15 25 39 43 65 75 129 139 195 215 325 417 559 645 695 975 1075 1677 1807 2085 2795 3225 3467 3475 5421 5977 8385 9035 10401 10425 13975 17335 17931 27105 29885 41925 45071 45175 52005 77701 86675 89655 135213 135525 149081 149425 225355 233103 260025 388505 447243 448275 481913 676065 745405 1126775 1165515 1445739 1938053 1942525 2236215 2409565 3380325 3727025 5814159 5827575 6264869 7228695 9690265 11181075 12047825 18794607 20722259 29070795 31324345 36143475 48451325 62166777 93973035 103611295 145353975 156621725 269389367 310833885 469865175 518056475 808168101 1346946835 1554169425 4040840505 6734734175 20204202525