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240438372 = 22320036531
BaseRepresentation
bin11100101010011…
…00110001100100
3121202102112102220
432111030301210
5443023011442
635505232340
75646456336
oct1625146144
9552375386
10240438372
111137a29a9
12686326b0
133aa75535
1423d0b456
1516195eec
hexe54cc64

240438372 has 12 divisors (see below), whose sum is σ = 561022896. Its totient is φ = 80146120.

The previous prime is 240438371. The next prime is 240438383. The reversal of 240438372 is 273834042.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2404383722 = 115621221460020768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (240438371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10018254 + ... + 10018277.

It is an arithmetic number, because the mean of its divisors is an integer number (46751908).

Almost surely, 2240438372 is an apocalyptic number.

It is an amenable number.

240438372 is an abundant number, since it is smaller than the sum of its proper divisors (320584524).

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

240438372 is a wasteful number, since it uses less digits than its factorization.

240438372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036538 (or 20036536 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 240438372 is about 15506.0753254974. The cubic root of 240438372 is about 621.8246387573.

The spelling of 240438372 in words is "two hundred forty million, four hundred thirty-eight thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 20036531 40073062 60109593 80146124 120219186 240438372