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7130997 = 3488037
BaseRepresentation
bin11011001100111101110101
3111102021220000
4123030331311
53311142442
6412501513
7114420036
oct33147565
914367800
107130997
114030695
12247a899
131628a33
14d38a8d
1595cd4c
hex6ccf75

7130997 has 10 divisors (see below), whose sum is σ = 10652598. Its totient is φ = 4753944.

The previous prime is 7130993. The next prime is 7131001. The reversal of 7130997 is 7990317.

It is an interprime number because it is at equal distance from previous prime (7130993) and next prime (7131001).

It can be written as a sum of positive squares in only one way, i.e., 6625476 + 505521 = 2574^2 + 711^2 .

It is not a de Polignac number, because 7130997 - 22 = 7130993 is a prime.

It is a super-2 number, since 2×71309972 = 101702236428018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7130993) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 43938 + ... + 44099.

Almost surely, 27130997 is an apocalyptic number.

It is an amenable number.

7130997 is a deficient number, since it is larger than the sum of its proper divisors (3521601).

7130997 is an equidigital number, since it uses as much as digits as its factorization.

7130997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88049 (or 88040 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 7130997 is about 2670.3926677551. The cubic root of 7130997 is about 192.4790284682.

The spelling of 7130997 in words is "seven million, one hundred thirty thousand, nine hundred ninety-seven".

Divisors: 1 3 9 27 81 88037 264111 792333 2376999 7130997