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240689244 = 22320057437
BaseRepresentation
bin11100101100010…
…10000001011100
3121202220021120110
432112022001130
5443104023434
635514450020
75651552625
oct1626120134
9552807513
10240689244
11113954434
1268733910
133ab32793
1423d74a4c
15161e54e9
hexe58a05c

240689244 has 12 divisors (see below), whose sum is σ = 561608264. Its totient is φ = 80229744.

The previous prime is 240689231. The next prime is 240689279. The reversal of 240689244 is 442986042.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10028707 + ... + 10028730.

Almost surely, 2240689244 is an apocalyptic number.

It is an amenable number.

240689244 is an abundant number, since it is smaller than the sum of its proper divisors (320919020).

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

240689244 is a wasteful number, since it uses less digits than its factorization.

240689244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20057444 (or 20057442 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 240689244 is about 15514.1626909092. The cubic root of 240689244 is about 622.0408329876.

The spelling of 240689244 in words is "two hundred forty million, six hundred eighty-nine thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 20057437 40114874 60172311 80229748 120344622 240689244