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23442874 = 2721318401
BaseRepresentation
bin101100101101…
…1010110111010
31122010000120121
41121123112322
522000132444
62154243454
7403155400
oct131332672
948100517
1023442874
1112261a84
127a2658a
134b1a530
143183470
1520d1084
hex165b5ba

23442874 has 24 divisors (see below), whose sum is σ = 44054388. Its totient is φ = 9273600.

The previous prime is 23442841. The next prime is 23442877. The reversal of 23442874 is 47824432.

It can be written as a sum of positive squares in 2 ways, for example, as 22325625 + 1117249 = 4725^2 + 1057^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (23442877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7927 + ... + 10474.

Almost surely, 223442874 is an apocalyptic number.

23442874 is a deficient number, since it is larger than the sum of its proper divisors (20611514).

23442874 is a wasteful number, since it uses less digits than its factorization.

23442874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18430 (or 18423 counting only the distinct ones).

The product of its digits is 43008, while the sum is 34.

The square root of 23442874 is about 4841.7841752808. The cubic root of 23442874 is about 286.2004316578.

The spelling of 23442874 in words is "twenty-three million, four hundred forty-two thousand, eight hundred seventy-four".

Divisors: 1 2 7 13 14 26 49 91 98 182 637 1274 18401 36802 128807 239213 257614 478426 901649 1674491 1803298 3348982 11721437 23442874