Search a number
-
+
7997045 = 5734663
BaseRepresentation
bin11110100000011001110101
3120001021212212
4132200121311
54021401140
6443223205
7124655000
oct36403165
916037785
107997045
114572331
122817b05
13186cca4
1410c2537
15a7e765
hex7a0675

7997045 has 16 divisors (see below), whose sum is σ = 11193600. Its totient is φ = 5482512.

The previous prime is 7997029. The next prime is 7997047. The reversal of 7997045 is 5407997.

It is a happy number.

It is not a de Polignac number, because 7997045 - 24 = 7997029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7996993 and 7997011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7997047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 617 + ... + 4046.

It is an arithmetic number, because the mean of its divisors is an integer number (699600).

Almost surely, 27997045 is an apocalyptic number.

It is an amenable number.

7997045 is a deficient number, since it is larger than the sum of its proper divisors (3196555).

7997045 is an equidigital number, since it uses as much as digits as its factorization.

7997045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4689 (or 4675 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 7997045 is about 2827.9047013646. The cubic root of 7997045 is about 199.9753719674.

The spelling of 7997045 in words is "seven million, nine hundred ninety-seven thousand, forty-five".

Divisors: 1 5 7 35 49 245 343 1715 4663 23315 32641 163205 228487 1142435 1599409 7997045