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7970005 = 59716433
BaseRepresentation
bin11110011001110011010101
3112222220210101
4132121303111
54020020010
6442454101
7124513111
oct36316325
915886711
107970005
114553a8a
122804331
1318608a4
1410b6741
15a7673a
hex799cd5

7970005 has 8 divisors (see below), whose sum is σ = 9663192. Its totient is φ = 6309888.

The previous prime is 7969999. The next prime is 7970021. The reversal of 7970005 is 5000797.

It can be written as a sum of positive squares in 4 ways, for example, as 2798929 + 5171076 = 1673^2 + 2274^2 .

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 7970005 - 27 = 7969877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7732 + ... + 8701.

It is an arithmetic number, because the mean of its divisors is an integer number (1207899).

Almost surely, 27970005 is an apocalyptic number.

It is an amenable number.

7970005 is a deficient number, since it is larger than the sum of its proper divisors (1693187).

7970005 is a wasteful number, since it uses less digits than its factorization.

7970005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16535.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 7970005 is about 2823.1197282439. The cubic root of 7970005 is about 199.7497286185.

The spelling of 7970005 in words is "seven million, nine hundred seventy thousand, five".

Divisors: 1 5 97 485 16433 82165 1594001 7970005