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27252420 = 22351334939
BaseRepresentation
bin110011111110…
…1011011000100
31220021120021220
41213331123010
523434034140
62412040340
7450433056
oct147753304
956246256
1027252420
1114424168
1291630b0
1358524c0
1438958d6
1525d4bd0
hex19fd6c4

27252420 has 48 divisors (see below), whose sum is σ = 82178880. Its totient is φ = 6708096.

The previous prime is 27252419. The next prime is 27252437. The reversal of 27252420 is 2425272.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16690 + ... + 18249.

It is an arithmetic number, because the mean of its divisors is an integer number (1712060).

Almost surely, 227252420 is an apocalyptic number.

27252420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27252420 is an abundant number, since it is smaller than the sum of its proper divisors (54926460).

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

27252420 is a wasteful number, since it uses less digits than its factorization.

27252420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34964 (or 34962 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 27252420 is about 5220.3850432703. The cubic root of 27252420 is about 300.9319905361.

Adding to 27252420 its reverse (2425272), we get a palindrome (29677692).

It can be divided in two parts, 27252 and 420, that added together give a palindrome (27672).

The spelling of 27252420 in words is "twenty-seven million, two hundred fifty-two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 34939 69878 104817 139756 174695 209634 349390 419268 454207 524085 698780 908414 1048170 1362621 1816828 2096340 2271035 2725242 4542070 5450484 6813105 9084140 13626210 27252420