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240872388 = 223172714357
BaseRepresentation
bin11100101101101…
…10101111000100
3121210020120210120
432112312233010
5443130404023
635522421540
75653244601
oct1626665704
9553216716
10240872388
11113a69a99
12688018b0
133ab97c53
1423dc16a8
151622e8e3
hexe5b6bc4

240872388 has 48 divisors (see below), whose sum is σ = 597429504. Its totient is φ = 75271680.

The previous prime is 240872381. The next prime is 240872389. The reversal of 240872388 is 883278042.

240872388 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (240872381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53106 + ... + 57462.

It is an arithmetic number, because the mean of its divisors is an integer number (12446448).

Almost surely, 2240872388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 240872388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298714752).

240872388 is an abundant number, since it is smaller than the sum of its proper divisors (356557116).

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

240872388 is a wasteful number, since it uses less digits than its factorization.

240872388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652 (or 4650 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 240872388 is about 15520.0640462596. The cubic root of 240872388 is about 622.1985663389.

The spelling of 240872388 in words is "two hundred forty million, eight hundred seventy-two thousand, three hundred eighty-eight".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 271 542 813 1084 1626 3252 4357 4607 8714 9214 13071 13821 17428 18428 26142 27642 52284 55284 74069 148138 222207 296276 444414 888828 1180747 2361494 3542241 4722988 7084482 14168964 20072699 40145398 60218097 80290796 120436194 240872388