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749264871 = 31632296691
BaseRepresentation
bin101100101010001…
…101111111100111
31221012212121011210
4230222031333213
53013302433441
6202203202503
724365434455
oct5452157747
91835777153
10749264871
11354a38873
1218ab16433
13bc2cacc4
147171d9d5
1545ba4616
hex2ca8dfe7

749264871 has 16 divisors (see below), whose sum is σ = 1009688960. Its totient is φ = 494203680.

The previous prime is 749264833. The next prime is 749264881. The reversal of 749264871 is 178462947.

It is not a de Polignac number, because 749264871 - 26 = 749264807 is a prime.

It is a super-2 number, since 2×7492648712 = 1122795693829293282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 749264871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (749264881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108636 + ... + 115326.

It is an arithmetic number, because the mean of its divisors is an integer number (63105560).

Almost surely, 2749264871 is an apocalyptic number.

749264871 is a deficient number, since it is larger than the sum of its proper divisors (260424089).

749264871 is a wasteful number, since it uses less digits than its factorization.

749264871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086.

The product of its digits is 677376, while the sum is 48.

The square root of 749264871 is about 27372.7030269208. The cubic root of 749264871 is about 908.2633509214.

It can be divided in two parts, 74926 and 4871, that added together give a palindrome (79797).

The spelling of 749264871 in words is "seven hundred forty-nine million, two hundred sixty-four thousand, eight hundred seventy-one".

Divisors: 1 3 163 229 489 687 6691 20073 37327 111981 1090633 1532239 3271899 4596717 249754957 749264871