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12742426600 = 235263712133
BaseRepresentation
bin10111101111000000…
…11111111111101000
31012220001010100011221
423313200133333220
5202044030122400
65504230231424
7630524560531
oct136740377750
935801110157
1012742426600
115449849782
1225774b5574
131280c0a0c7
1488c47b688
154e8a23c1a
hex2f781ffe8

12742426600 has 24 divisors (see below), whose sum is σ = 29626142310. Its totient is φ = 5096970560.

The previous prime is 12742426583. The next prime is 12742426601. The reversal of 12742426600 is 662424721.

It can be written as a sum of positive squares in 3 ways, for example, as 11089353636 + 1653072964 = 105306^2 + 40658^2 .

It is not an unprimeable number, because it can be changed into a prime (12742426601) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31855867 + ... + 31856266.

Almost surely, 212742426600 is an apocalyptic number.

12742426600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12742426600 is an abundant number, since it is smaller than the sum of its proper divisors (16883715710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12742426600 is a wasteful number, since it uses less digits than its factorization.

12742426600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63712149 (or 63712140 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 12742426600 in words is "twelve billion, seven hundred forty-two million, four hundred twenty-six thousand, six hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 200 63712133 127424266 254848532 318560665 509697064 637121330 1274242660 1592803325 2548485320 3185606650 6371213300 12742426600