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797710045 = 51126172137
BaseRepresentation
bin101111100011000…
…001011011011101
32001121000212110111
4233203001123131
53113203210140
6211053410021
725524265156
oct5743013335
92047025414
10797710045
1137a317400
121a3199911
13c93607a2
1477d3092d
154a0737ea
hex2f8c16dd

797710045 has 24 divisors (see below), whose sum is σ = 1054384632. Its totient is φ = 578941440.

The previous prime is 797710009. The next prime is 797710087. The reversal of 797710045 is 540017797.

It can be written as a sum of positive squares in 4 ways, for example, as 57108249 + 740601796 = 7557^2 + 27214^2 .

It is not a de Polignac number, because 797710045 - 27 = 797709917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 372217 + ... + 374353.

It is an arithmetic number, because the mean of its divisors is an integer number (43932693).

Almost surely, 2797710045 is an apocalyptic number.

It is an amenable number.

797710045 is a deficient number, since it is larger than the sum of its proper divisors (256674587).

797710045 is a wasteful number, since it uses less digits than its factorization.

797710045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781 (or 2770 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 40.

The square root of 797710045 is about 28243.7611695043. The cubic root of 797710045 is about 927.4311677740.

The spelling of 797710045 in words is "seven hundred ninety-seven million, seven hundred ten thousand, forty-five".

Divisors: 1 5 11 55 121 605 617 2137 3085 6787 10685 23507 33935 74657 117535 258577 373285 1292885 1318529 6592645 14503819 72519095 159542009 797710045