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27420416740 = 2251371020837
BaseRepresentation
bin11001100010011000…
…100101101011100100
32121202222100111101101
4121202120211223210
5422124111313430
620332522405444
71660334460643
oct314230455344
977688314341
1027420416740
11106a1123a42
125393060884
13277cb20182
1414819dd35a
15aa742cdca
hex662625ae4

27420416740 has 12 divisors (see below), whose sum is σ = 57582875196. Its totient is φ = 10968166688.

The previous prime is 27420416729. The next prime is 27420416741. The reversal of 27420416740 is 4761402472.

It can be written as a sum of positive squares in 2 ways, for example, as 15094088164 + 12326328576 = 122858^2 + 111024^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27420416740.

It is not an unprimeable number, because it can be changed into a prime (27420416741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685510399 + ... + 685510438.

It is an arithmetic number, because the mean of its divisors is an integer number (4798572933).

Almost surely, 227420416740 is an apocalyptic number.

27420416740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27420416740 is an abundant number, since it is smaller than the sum of its proper divisors (30162458456).

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

27420416740 is a wasteful number, since it uses less digits than its factorization.

27420416740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371020846 (or 1371020844 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 37.

The spelling of 27420416740 in words is "twenty-seven billion, four hundred twenty million, four hundred sixteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1371020837 2742041674 5484083348 6855104185 13710208370 27420416740