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274431 = 3175381
BaseRepresentation
bin1000010111111111111
3111221110010
41002333333
532240211
65514303
72222043
oct1027777
9457403
10274431
11178203
12112993
1397bb1
1472023
15564a6
hex42fff

274431 has 8 divisors (see below), whose sum is σ = 387504. Its totient is φ = 172160.

The previous prime is 274423. The next prime is 274441. The reversal of 274431 is 134472.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 274431 - 23 = 274423 is a prime.

It is a super-2 number, since 2×2744312 = 150624747522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 274398 and 274407.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 274431.

It is not an unprimeable number, because it can be changed into a prime (274441) 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, 2640 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (48438).

2274431 is an apocalyptic number.

274431 is a deficient number, since it is larger than the sum of its proper divisors (113073).

274431 is a wasteful number, since it uses less digits than its factorization.

274431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5401.

The product of its digits is 672, while the sum is 21.

The square root of 274431 is about 523.8616229502. The cubic root of 274431 is about 64.9846906746.

It can be divided in two parts, 2744 and 31, that added together give a triangular number (2775 = T74).

The spelling of 274431 in words is "two hundred seventy-four thousand, four hundred thirty-one".

Divisors: 1 3 17 51 5381 16143 91477 274431