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23108040 = 2332564189
BaseRepresentation
bin101100000100…
…1100111001000
31121111000021100
41120021213020
521403424130
62143141400
7400262244
oct130114710
947430240
1023108040
111205345a
1278a4860
134a30cc7
1430d7424
152066c60
hex16099c8

23108040 has 48 divisors (see below), whose sum is σ = 75102300. Its totient is φ = 6162048.

The previous prime is 23108039. The next prime is 23108069. The reversal of 23108040 is 4080132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23097636 + 10404 = 4806^2 + 102^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31735 + ... + 32454.

Almost surely, 223108040 is an apocalyptic number.

23108040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23108040 is an abundant number, since it is smaller than the sum of its proper divisors (51994260).

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

23108040 is a wasteful number, since it uses less digits than its factorization.

23108040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64206 (or 64199 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 23108040 is about 4807.0822751436. The cubic root of 23108040 is about 284.8312944297.

Adding to 23108040 its reverse (4080132), we get a palindrome (27188172).

The spelling of 23108040 in words is "twenty-three million, one hundred eight thousand, forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 64189 128378 192567 256756 320945 385134 513512 577701 641890 770268 962835 1155402 1283780 1540536 1925670 2310804 2567560 2888505 3851340 4621608 5777010 7702680 11554020 23108040