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797402019 = 32343268757
BaseRepresentation
bin101111100001110…
…110001110100011
32001120110012221010
4233201312032203
53113113331034
6211043032003
725521543141
oct5741661643
92046405833
10797402019
1137a126a37
121a306b603
13c928351b
1477c90591
154a0123e9
hex2f8763a3

797402019 has 16 divisors (see below), whose sum is σ = 1135233792. Its totient is φ = 496661088.

The previous prime is 797401993. The next prime is 797402027. The reversal of 797402019 is 910204797.

It is a de Polignac number, because none of the positive numbers 2k-797402019 is a prime.

It is a super-2 number, since 2×7974020192 = 1271699959810552722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (797402069) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 131412 + ... + 137345.

It is an arithmetic number, because the mean of its divisors is an integer number (70952112).

Almost surely, 2797402019 is an apocalyptic number.

797402019 is a deficient number, since it is larger than the sum of its proper divisors (337831773).

797402019 is a wasteful number, since it uses less digits than its factorization.

797402019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268826.

The product of its (nonzero) digits is 31752, while the sum is 39.

The square root of 797402019 is about 28238.3076511324. The cubic root of 797402019 is about 927.3117803298.

The spelling of 797402019 in words is "seven hundred ninety-seven million, four hundred two thousand, nineteen".

Divisors: 1 3 23 43 69 129 989 2967 268757 806271 6181411 11556551 18544233 34669653 265800673 797402019