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749412 = 2236257
BaseRepresentation
bin10110110111101100100
31102002000000
42312331210
5142440122
624021300
76240606
oct2667544
91362000
10749412
11472054
12301830
13203151
14157176
15ec0ac
hexb6f64

749412 has 42 divisors (see below), whose sum is σ = 1973958. Its totient is φ = 248832.

The previous prime is 749401. The next prime is 749423. The reversal of 749412 is 214947.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (749401) and next prime (749423).

It can be written as a sum of positive squares in only one way, i.e., 746496 + 2916 = 864^2 + 54^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 749412.

It is an unprimeable number.

749412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2788 + ... + 3044.

It is an arithmetic number, because the mean of its divisors is an integer number (46999).

2749412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 749412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (986979).

749412 is an abundant number, since it is smaller than the sum of its proper divisors (1224546).

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

749412 is a wasteful number, since it uses less digits than its factorization.

749412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 262 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 749412 is about 865.6858552616. The cubic root of 749412 is about 90.8322797248.

The spelling of 749412 in words is "seven hundred forty-nine thousand, four hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 257 324 486 514 729 771 972 1028 1458 1542 2313 2916 3084 4626 6939 9252 13878 20817 27756 41634 62451 83268 124902 187353 249804 374706 749412