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2297431 = 17149907
BaseRepresentation
bin1000110000111001010111
311022201111001
420300321113
51042004211
6121124131
725346023
oct10607127
94281431
102297431
11132a104
12929647
13625936
1443b383
15305ac1
hex230e57

2297431 has 8 divisors (see below), whose sum is σ = 2451600. Its totient is φ = 2145408.

The previous prime is 2297429. The next prime is 2297437. The reversal of 2297431 is 1347922.

2297431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2297431 - 21 = 2297429 is a prime.

It is a super-2 number, since 2×22974312 = 10556378399522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2297431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2297437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2080 + ... + 2986.

It is an arithmetic number, because the mean of its divisors is an integer number (306450).

22297431 is an apocalyptic number.

2297431 is a deficient number, since it is larger than the sum of its proper divisors (154169).

2297431 is a wasteful number, since it uses less digits than its factorization.

2297431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073.

The product of its digits is 3024, while the sum is 28.

The square root of 2297431 is about 1515.7278779517. The cubic root of 2297431 is about 131.9514475552.

It can be divided in two parts, 22974 and 31, that added together give a triangular number (23005 = T214).

The spelling of 2297431 in words is "two million, two hundred ninety-seven thousand, four hundred thirty-one".

Divisors: 1 17 149 907 2533 15419 135143 2297431