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744387012 = 223220677417
BaseRepresentation
bin101100010111100…
…111000111000100
31220212200210000100
4230113213013010
53011030341022
6201510444100
724306120345
oct5427470704
91825623010
10744387012
11352206a86
12189363630
13bb2b09b5
1470c100cc
154553e1ac
hex2c5e71c4

744387012 has 18 divisors (see below), whose sum is σ = 1881645038. Its totient is φ = 248128992.

The previous prime is 744387001. The next prime is 744387013. The reversal of 744387012 is 210783447.

It is a happy number.

744387012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 739078596 + 5308416 = 27186^2 + 2304^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×7443870122 = 1108224047268576288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 20677417 = 744387012 / (7 + 4 + 4 + 3 + 8 + 7 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (744387013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10338673 + ... + 10338744.

Almost surely, 2744387012 is an apocalyptic number.

It is an amenable number.

744387012 is an abundant number, since it is smaller than the sum of its proper divisors (1137258026).

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

744387012 is a wasteful number, since it uses less digits than its factorization.

744387012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20677427 (or 20677422 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 744387012 is about 27283.4567458011. The cubic root of 744387012 is about 906.2880682732.

The spelling of 744387012 in words is "seven hundred forty-four million, three hundred eighty-seven thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 20677417 41354834 62032251 82709668 124064502 186096753 248129004 372193506 744387012