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23234740 = 22510311279
BaseRepresentation
bin101100010100…
…0100010110100
31121201110001221
41120220202310
521422002430
62150000124
7401330524
oct130504264
947643057
1023234740
111212a671
127946044
134a76889
14312b684
15208e57a
hex16288b4

23234740 has 24 divisors (see below), whose sum is σ = 49271040. Its totient is φ = 9202848.

The previous prime is 23234711. The next prime is 23234759. The reversal of 23234740 is 4743232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3580 + ... + 7699.

It is an arithmetic number, because the mean of its divisors is an integer number (2052960).

Almost surely, 223234740 is an apocalyptic number.

23234740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23234740 is an abundant number, since it is smaller than the sum of its proper divisors (26036300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23234740 is a wasteful number, since it uses less digits than its factorization.

23234740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11391 (or 11389 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 23234740 is about 4820.2427324773. The cubic root of 23234740 is about 285.3509168762.

Adding to 23234740 its reverse (4743232), we get a palindrome (27977972).

The spelling of 23234740 in words is "twenty-three million, two hundred thirty-four thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 11279 22558 45116 56395 112790 225580 1161737 2323474 4646948 5808685 11617370 23234740