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7970409 = 321675303
BaseRepresentation
bin11110011001111001101001
3112222221100100
4132121321221
54020023114
6442500013
7124514226
oct36317151
915887310
107970409
114554317
122804609
131860b25
1410b694d
15a76909
hex799e69

7970409 has 12 divisors (see below), whose sum is σ = 11583936. Its totient is φ = 5280792.

The previous prime is 7970377. The next prime is 7970471. The reversal of 7970409 is 9040797.

It is not a de Polignac number, because 7970409 - 25 = 7970377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7970309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1149 + ... + 4154.

It is an arithmetic number, because the mean of its divisors is an integer number (965328).

Almost surely, 27970409 is an apocalyptic number.

It is an amenable number.

7970409 is a deficient number, since it is larger than the sum of its proper divisors (3613527).

7970409 is a wasteful number, since it uses less digits than its factorization.

7970409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5476 (or 5473 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 7970409 is about 2823.1912793858. The cubic root of 7970409 is about 199.7531036698.

The spelling of 7970409 in words is "seven million, nine hundred seventy thousand, four hundred nine".

Divisors: 1 3 9 167 501 1503 5303 15909 47727 885601 2656803 7970409