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201888888125 = 542111530911
BaseRepresentation
bin1011110000000110000…
…0111111010100111101
3201022002222120010212212
42330001200333110331
511301432023410000
6232425123310205
720404665143321
oct2740140772475
9638088503785
10201888888125
1178691017871
123316421b365
1316065762062
149ab2cd5981
1553b91d9c35
hex2f0183f53d

201888888125 has 20 divisors (see below), whose sum is σ = 253476161664. Its totient is φ = 160745550000.

The previous prime is 201888888109. The next prime is 201888888139. The reversal of 201888888125 is 521888888102.

It is not a de Polignac number, because 201888888125 - 24 = 201888888109 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 19 ways as a sum of consecutive naturals, for example, 633581 + ... + 897330.

Almost surely, 2201888888125 is an apocalyptic number.

201888888125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201888888125 is a deficient number, since it is larger than the sum of its proper divisors (51587273539).

201888888125 is an equidigital number, since it uses as much as digits as its factorization.

201888888125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531142 (or 1531127 counting only the distinct ones).

The product of its (nonzero) digits is 5242880, while the sum is 59.

The spelling of 201888888125 in words is "two hundred one billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, one hundred twenty-five".

Divisors: 1 5 25 125 211 625 1055 5275 26375 131875 1530911 7654555 38272775 191363875 323022221 956819375 1615111105 8075555525 40377777625 201888888125