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7989107 = 72473469
BaseRepresentation
bin11110011110011101110011
3120000212222212
4132132131303
54021122412
6443122335
7124622600
oct36363563
916025885
107989107
114567375
1228133ab
1318694a9
1410bd6a7
15a7c222
hex79e773

7989107 has 12 divisors (see below), whose sum is σ = 9493920. Its totient is φ = 6700176.

The previous prime is 7989083. The next prime is 7989143. The reversal of 7989107 is 7019897.

It is a de Polignac number, because none of the positive numbers 2k-7989107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7989187) 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, 569 + ... + 4037.

It is an arithmetic number, because the mean of its divisors is an integer number (791160).

Almost surely, 27989107 is an apocalyptic number.

7989107 is a deficient number, since it is larger than the sum of its proper divisors (1504813).

7989107 is a wasteful number, since it uses less digits than its factorization.

7989107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3530 (or 3523 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 41.

The square root of 7989107 is about 2826.5008402617. The cubic root of 7989107 is about 199.9091837683.

The spelling of 7989107 in words is "seven million, nine hundred eighty-nine thousand, one hundred seven".

Divisors: 1 7 47 49 329 2303 3469 24283 163043 169981 1141301 7989107