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7130345 = 52362003
BaseRepresentation
bin11011001100110011101001
3111102020222212
4123030303221
53311132340
6412454505
7114415115
oct33146351
914366885
107130345
114030152
12247a435
131628651
14d38745
1595ca65
hex6ccce9

7130345 has 8 divisors (see below), whose sum is σ = 8928576. Its totient is φ = 5456176.

The previous prime is 7130329. The next prime is 7130359. The reversal of 7130345 is 5430317.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7130345 - 24 = 7130329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7130345.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30887 + ... + 31116.

It is an arithmetic number, because the mean of its divisors is an integer number (1116072).

Almost surely, 27130345 is an apocalyptic number.

It is an amenable number.

7130345 is a deficient number, since it is larger than the sum of its proper divisors (1798231).

7130345 is a wasteful number, since it uses less digits than its factorization.

7130345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62031.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 7130345 is about 2670.2705855400. The cubic root of 7130345 is about 192.4731620537.

The spelling of 7130345 in words is "seven million, one hundred thirty thousand, three hundred forty-five".

Divisors: 1 5 23 115 62003 310015 1426069 7130345