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749668652 = 221721152249
BaseRepresentation
bin101100101011110…
…000100100101100
31221020122010001122
4230223300210230
53013403344102
6202220000112
724402035615
oct5453604454
91836563048
10749668652
11355194177
1218b090038
13bc40ca25
14717c6c0c
1545c340a2
hex2caf092c

749668652 has 24 divisors (see below), whose sum is σ = 1395702000. Its totient is φ = 351106560.

The previous prime is 749668597. The next prime is 749668657. The reversal of 749668652 is 256866947.

It is a junction number, because it is equal to n+sod(n) for n = 749668594 and 749668603.

It is not an unprimeable number, because it can be changed into a prime (749668657) 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, 11777 + ... + 40472.

It is an arithmetic number, because the mean of its divisors is an integer number (58154250).

Almost surely, 2749668652 is an apocalyptic number.

It is an amenable number.

749668652 is a deficient number, since it is larger than the sum of its proper divisors (646033348).

749668652 is a wasteful number, since it uses less digits than its factorization.

749668652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52481 (or 52479 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 53.

The square root of 749668652 is about 27380.0776478081. The cubic root of 749668652 is about 908.4264768684.

The spelling of 749668652 in words is "seven hundred forty-nine million, six hundred sixty-eight thousand, six hundred fifty-two".

Divisors: 1 2 4 17 34 68 211 422 844 3587 7174 14348 52249 104498 208996 888233 1776466 3552932 11024539 22049078 44098156 187417163 374834326 749668652