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39242960 = 245490537
BaseRepresentation
bin1001010110110…
…0110011010000
32201211202012222
42111230303100
540021233320
63521040212
7654362651
oct225546320
981752188
1039242960
11201738a9
1211186068
1381900b3
1452d7528
1536a2825
hex256ccd0

39242960 has 20 divisors (see below), whose sum is σ = 91240068. Its totient is φ = 15697152.

The previous prime is 39242939. The next prime is 39242963. The reversal of 39242960 is 6924293.

It can be written as a sum of positive squares in 2 ways, for example, as 29333056 + 9909904 = 5416^2 + 3148^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39242960.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39242963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245189 + ... + 245348.

Almost surely, 239242960 is an apocalyptic number.

It is an amenable number.

39242960 is an abundant number, since it is smaller than the sum of its proper divisors (51997108).

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

39242960 is a wasteful number, since it uses less digits than its factorization.

39242960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490550 (or 490544 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 39242960 is about 6264.4201647080. The cubic root of 39242960 is about 339.8238995786.

The spelling of 39242960 in words is "thirty-nine million, two hundred forty-two thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 16 20 40 80 490537 981074 1962148 2452685 3924296 4905370 7848592 9810740 19621480 39242960