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27429844 = 22131927763
BaseRepresentation
bin110100010100…
…0101111010100
31220121120200011
41220220233110
524010223334
62415530004
7452102251
oct150505724
956546604
1027429844
11145354a2
129229904
1358b51a0
143900428
15261c564
hex1a28bd4

27429844 has 24 divisors (see below), whose sum is σ = 54417440. Its totient is φ = 11993184.

The previous prime is 27429821. The next prime is 27429847. The reversal of 27429844 is 44892472.

It is a junction number, because it is equal to n+sod(n) for n = 27429797 and 27429806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27429847) 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, 12894 + ... + 14869.

Almost surely, 227429844 is an apocalyptic number.

It is an amenable number.

27429844 is a deficient number, since it is larger than the sum of its proper divisors (26987596).

27429844 is a wasteful number, since it uses less digits than its factorization.

27429844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27799 (or 27797 counting only the distinct ones).

The product of its digits is 129024, while the sum is 40.

The square root of 27429844 is about 5237.3508570650. The cubic root of 27429844 is about 301.5836403822.

The spelling of 27429844 in words is "twenty-seven million, four hundred twenty-nine thousand, eight hundred forty-four".

Divisors: 1 2 4 13 19 26 38 52 76 247 494 988 27763 55526 111052 360919 527497 721838 1054994 1443676 2109988 6857461 13714922 27429844