Search a number
-
+
7970397 = 323115513
BaseRepresentation
bin11110011001111001011101
3112222221022220
4132121321131
54020023042
6442455553
7124514211
oct36317135
915887286
107970397
114554306
1228045b9
131860b16
1410b6941
15a768ec
hex799e5d

7970397 has 8 divisors (see below), whose sum is σ = 11089344. Its totient is φ = 5082528.

The previous prime is 7970377. The next prime is 7970471. The reversal of 7970397 is 7930797.

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

It is not a de Polignac number, because 7970397 - 27 = 7970269 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7970327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57688 + ... + 57825.

It is an arithmetic number, because the mean of its divisors is an integer number (1386168).

Almost surely, 27970397 is an apocalyptic number.

It is an amenable number.

7970397 is a deficient number, since it is larger than the sum of its proper divisors (3118947).

7970397 is a wasteful number, since it uses less digits than its factorization.

7970397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115539.

The product of its (nonzero) digits is 83349, while the sum is 42.

The square root of 7970397 is about 2823.1891541305. The cubic root of 7970397 is about 199.7530034224.

It can be divided in two parts, 79703 and 97, that added together give a triangular number (79800 = T399).

The spelling of 7970397 in words is "seven million, nine hundred seventy thousand, three hundred ninety-seven".

Divisors: 1 3 23 69 115513 346539 2656799 7970397