Search a number
-
+
23101925 = 5271121091
BaseRepresentation
bin101100000100…
…0000111100101
31121110200212212
41120020013211
521403230200
62143053205
7400235360
oct130100745
947420785
1023101925
1112049900
1278a1205
134a2b2a2
1430d50d7
152065035
hex16081e5

23101925 has 36 divisors (see below), whose sum is σ = 36018528. Its totient is φ = 14388000.

The previous prime is 23101921. The next prime is 23101927. The reversal of 23101925 is 52910132.

It is not a de Polignac number, because 23101925 - 22 = 23101921 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23101925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101921) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20630 + ... + 21720.

Almost surely, 223101925 is an apocalyptic number.

23101925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23101925 is a deficient number, since it is larger than the sum of its proper divisors (12916603).

23101925 is a wasteful number, since it uses less digits than its factorization.

23101925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130 (or 1114 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 23101925 is about 4806.4461923546. The cubic root of 23101925 is about 284.8061675760.

The spelling of 23101925 in words is "twenty-three million, one hundred one thousand, nine hundred twenty-five".

Divisors: 1 5 7 11 25 35 55 77 121 175 275 385 605 847 1091 1925 3025 4235 5455 7637 12001 21175 27275 38185 60005 84007 132011 190925 300025 420035 660055 924077 2100175 3300275 4620385 23101925