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7980107 = 25731051
BaseRepresentation
bin11110011100010001001011
3120000102122112
4132130101023
54020330412
6443012535
7124554422
oct36342113
916012575
107980107
114560633
12280a14b
131865375
1410ba2b9
15a79722
hex79c44b

7980107 has 4 divisors (see below), whose sum is σ = 8011416. Its totient is φ = 7948800.

The previous prime is 7980101. The next prime is 7980121. The reversal of 7980107 is 7010897.

7980107 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7980107 - 214 = 7963723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7980101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15269 + ... + 15782.

It is an arithmetic number, because the mean of its divisors is an integer number (2002854).

Almost surely, 27980107 is an apocalyptic number.

7980107 is a deficient number, since it is larger than the sum of its proper divisors (31309).

7980107 is a wasteful number, since it uses less digits than its factorization.

7980107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31308.

The product of its (nonzero) digits is 3528, while the sum is 32.

The square root of 7980107 is about 2824.9083170963. The cubic root of 7980107 is about 199.8340874031.

The spelling of 7980107 in words is "seven million, nine hundred eighty thousand, one hundred seven".

Divisors: 1 257 31051 7980107