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744980 = 2251932
BaseRepresentation
bin10110101111000010100
31101211220212
42311320110
5142314410
623544552
76221645
oct2657024
91354825
10744980
11469795
122bb158
13201122
141556cc
15eab05
hexb5e14

744980 has 18 divisors (see below), whose sum is σ = 1572606. Its totient is φ = 296448.

The previous prime is 744977. The next prime is 745001. The reversal of 744980 is 89447.

It is a happy number.

744980 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 3 ways, for example, as 1936 + 743044 = 44^2 + 862^2 .

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3764 + ... + 3956.

It is an arithmetic number, because the mean of its divisors is an integer number (87367).

2744980 is an apocalyptic number.

It is an amenable number.

744980 is an abundant number, since it is smaller than the sum of its proper divisors (827626).

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

744980 is a wasteful number, since it uses less digits than its factorization.

744980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 744980 is about 863.1222393149. The cubic root of 744980 is about 90.6528657867.

The spelling of 744980 in words is "seven hundred forty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 193 386 772 965 1930 3860 37249 74498 148996 186245 372490 744980