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27069860 = 2257318541
BaseRepresentation
bin110011101000…
…0110110100100
31212221021212102
41213100312210
523412213420
62404111232
7446042606
oct147206644
955837772
1027069860
1114309a94
129095518
1357ba38c
143849176
15259aa75
hex19d0da4

27069860 has 24 divisors (see below), whose sum is σ = 57628536. Its totient is φ = 10679040.

The previous prime is 27069859. The next prime is 27069863. The reversal of 27069860 is 6896072.

It can be written as a sum of positive squares in 4 ways, for example, as 3020644 + 24049216 = 1738^2 + 4904^2 .

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (27069863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7811 + ... + 10730.

It is an arithmetic number, because the mean of its divisors is an integer number (2401189).

Almost surely, 227069860 is an apocalyptic number.

27069860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27069860 is an abundant number, since it is smaller than the sum of its proper divisors (30558676).

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

27069860 is a wasteful number, since it uses less digits than its factorization.

27069860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18623 (or 18621 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 27069860 is about 5202.8703616369. The cubic root of 27069860 is about 300.2585179051.

The spelling of 27069860 in words is "twenty-seven million, sixty-nine thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 73 146 292 365 730 1460 18541 37082 74164 92705 185410 370820 1353493 2706986 5413972 6767465 13534930 27069860