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23801145 = 354336901
BaseRepresentation
bin101101011001…
…0110100111001
31122210020000220
41122302310321
522043114040
62210050253
7406210044
oct132626471
948706026
1023801145
1112487175
127b79989
134c14624
143237c5b
1521522d0
hex16b2d39

23801145 has 16 divisors (see below), whose sum is σ = 38968512. Its totient is φ = 12398400.

The previous prime is 23801123. The next prime is 23801161. The reversal of 23801145 is 54110832.

It is not a de Polignac number, because 23801145 - 29 = 23800633 is a prime.

It is a super-2 number, since 2×238011452 = 1132989006622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17806 + ... + 19095.

It is an arithmetic number, because the mean of its divisors is an integer number (2435532).

Almost surely, 223801145 is an apocalyptic number.

It is an amenable number.

23801145 is a deficient number, since it is larger than the sum of its proper divisors (15167367).

23801145 is a wasteful number, since it uses less digits than its factorization.

23801145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36952.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 23801145 is about 4878.6417167076. The cubic root of 23801145 is about 287.6510409881.

Adding to 23801145 its reverse (54110832), we get a palindrome (77911977).

The spelling of 23801145 in words is "twenty-three million, eight hundred one thousand, one hundred forty-five".

Divisors: 1 3 5 15 43 129 215 645 36901 110703 184505 553515 1586743 4760229 7933715 23801145