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240023725 = 5279121531
BaseRepresentation
bin11100100111001…
…11100010101101
3121201122110122121
432103213202231
5442421224400
635452312541
75643111424
oct1623474255
9551573577
10240023725
1111353a417
1268472751
133a95b896
1423c402bb
151611321a
hexe4e78ad

240023725 has 12 divisors (see below), whose sum is σ = 301399360. Its totient is φ = 189586800.

The previous prime is 240023701. The next prime is 240023743. The reversal of 240023725 is 527320042.

It is not a de Polignac number, because 240023725 - 29 = 240023213 is a prime.

It is a super-2 number, since 2×2400237252 = 115222777125751250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 240023725.

It is a congruent number.

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, 58791 + ... + 62740.

Almost surely, 2240023725 is an apocalyptic number.

240023725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

240023725 is a deficient number, since it is larger than the sum of its proper divisors (61375635).

240023725 is a wasteful number, since it uses less digits than its factorization.

240023725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121620 (or 121615 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 240023725 is about 15492.6990869893. The cubic root of 240023725 is about 621.4669780414.

Adding to 240023725 its reverse (527320042), we get a palindrome (767343767).

The spelling of 240023725 in words is "two hundred forty million, twenty-three thousand, seven hundred twenty-five".

Divisors: 1 5 25 79 395 1975 121531 607655 3038275 9600949 48004745 240023725