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749001049 = 2321415881
BaseRepresentation
bin101100101001001…
…101100101011001
31221012101012021121
4230221031211121
53013221013144
6202153405241
724363255346
oct5451154531
91835335247
10749001049
11354878635
1218aa09821
13bc237bb4
14716917cd
1545b51384
hex2ca4d959

749001049 has 6 divisors (see below), whose sum is σ = 782982746. Its totient is φ = 716435280.

The previous prime is 749001041. The next prime is 749001053. The reversal of 749001049 is 940100947.

749001049 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., 687488400 + 61512649 = 26220^2 + 7843^2 .

It is not a de Polignac number, because 749001049 - 23 = 749001041 is a prime.

It is a super-2 number, since 2×7490010492 = 1122005142806200802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749001041) 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, 707412 + ... + 708469.

Almost surely, 2749001049 is an apocalyptic number.

It is an amenable number.

749001049 is a deficient number, since it is larger than the sum of its proper divisors (33981697).

749001049 is a wasteful number, since it uses less digits than its factorization.

749001049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415927 (or 1415904 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 749001049 is about 27367.8835316142. The cubic root of 749001049 is about 908.1567362059.

The spelling of 749001049 in words is "seven hundred forty-nine million, one thousand, forty-nine".

Divisors: 1 23 529 1415881 32565263 749001049