Search a number
-
+
44868520 = 2355212153
BaseRepresentation
bin1010101100101…
…0001110101000
310010102120001001
42223022032220
542441243040
64241404344
71053243004
oct253121650
9103376031
1044868520
1123366424
12130396b4
1393ac828
145d5d704
153e1459a
hex2aca3a8

44868520 has 32 divisors (see below), whose sum is σ = 101194920. Its totient is φ = 17904640.

The previous prime is 44868463. The next prime is 44868529. The reversal of 44868520 is 2586844.

It can be written as a sum of positive squares in 4 ways, for example, as 20484676 + 24383844 = 4526^2 + 4938^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 44868520.

It is not an unprimeable number, because it can be changed into a prime (44868529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19764 + ... + 21916.

Almost surely, 244868520 is an apocalyptic number.

44868520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44868520 is an abundant number, since it is smaller than the sum of its proper divisors (56326400).

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

44868520 is a wasteful number, since it uses less digits than its factorization.

44868520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2681 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 44868520 is about 6698.3968231212. The cubic root of 44868520 is about 355.3425774572.

The spelling of 44868520 in words is "forty-four million, eight hundred sixty-eight thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 521 1042 2084 2153 2605 4168 4306 5210 8612 10420 10765 17224 20840 21530 43060 86120 1121713 2243426 4486852 5608565 8973704 11217130 22434260 44868520