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2023431 = 36111057
BaseRepresentation
bin111101110000000000111
310210210121220
413232000013
51004222211
6111211423
723125134
oct7560007
93723556
102023431
111162263
12816b73
1355acc7
143a958b
1529e806
hex1ee007

2023431 has 8 divisors (see below), whose sum is σ = 2742384. Its totient is φ = 1326720.

The previous prime is 2023421. The next prime is 2023433. The reversal of 2023431 is 1343202.

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

It is a de Polignac number, because none of the positive numbers 2k-2023431 is a prime.

It is a super-2 number, since 2×20234312 = 8188546023522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2023431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2023433) 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, 5346 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (342798).

22023431 is an apocalyptic number.

2023431 is a deficient number, since it is larger than the sum of its proper divisors (718953).

2023431 is a wasteful number, since it uses less digits than its factorization.

2023431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11121.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2023431 is about 1422.4735498420. The cubic root of 2023431 is about 126.4822161463.

Adding to 2023431 its reverse (1343202), we get a palindrome (3366633).

The spelling of 2023431 in words is "two million, twenty-three thousand, four hundred thirty-one".

Divisors: 1 3 61 183 11057 33171 674477 2023431