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272431 = 372199
BaseRepresentation
bin1000010100000101111
3111211201001
41002200233
532204211
65501131
72213155
oct1024057
9454631
10272431
11176755
121117a7
1397003
14713d5
1555ac1
hex4282f

272431 has 6 divisors (see below), whose sum is σ = 281400. Its totient is φ = 263736.

The previous prime is 272423. The next prime is 272449. The reversal of 272431 is 134272.

It is not a de Polignac number, because 272431 - 23 = 272423 is a prime.

It is a super-2 number, since 2×2724312 = 148437299522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 272399 and 272408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272411) 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, 1270 + ... + 1468.

It is an arithmetic number, because the mean of its divisors is an integer number (46900).

2272431 is an apocalyptic number.

272431 is a deficient number, since it is larger than the sum of its proper divisors (8969).

272431 is an equidigital number, since it uses as much as digits as its factorization.

272431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273 (or 236 counting only the distinct ones).

The product of its digits is 336, while the sum is 19.

The square root of 272431 is about 521.9492312476. The cubic root of 272431 is about 64.8264403354.

It can be divided in two parts, 272 and 431, that added together give a triangular number (703 = T37).

The spelling of 272431 in words is "two hundred seventy-two thousand, four hundred thirty-one".

Divisors: 1 37 199 1369 7363 272431