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23428354 = 276915233
BaseRepresentation
bin101100101011…
…1110100000010
31122002021122211
41121113310002
521444201404
62154052334
7403065145
oct131276402
948067584
1023428354
1112252084
127a1a0aa
134b13a41
14317c05c
1520cbb04
hex1657d02

23428354 has 8 divisors (see below), whose sum is σ = 35190540. Its totient is φ = 11698176.

The previous prime is 23428337. The next prime is 23428357. The reversal of 23428354 is 45382432.

It can be written as a sum of positive squares in 2 ways, for example, as 22043025 + 1385329 = 4695^2 + 1177^2 .

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

It is a super-2 number, since 2×234283542 = 1097775542298632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23428357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6079 + ... + 9154.

Almost surely, 223428354 is an apocalyptic number.

23428354 is a deficient number, since it is larger than the sum of its proper divisors (11762186).

23428354 is a wasteful number, since it uses less digits than its factorization.

23428354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16004.

The product of its digits is 23040, while the sum is 31.

The square root of 23428354 is about 4840.2844957709. The cubic root of 23428354 is about 286.1413307055.

The spelling of 23428354 in words is "twenty-three million, four hundred twenty-eight thousand, three hundred fifty-four".

Divisors: 1 2 769 1538 15233 30466 11714177 23428354