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120849107 = 1722318181
BaseRepresentation
bin1110011010000…
…00001011010011
322102101202210212
413031000023103
5221414132412
615554114335
72665125521
oct715001323
9272352725
10120849107
11622417a5
123457b9ab
131c063562
141209b311
15a922222
hex73402d3

120849107 has 12 divisors (see below), whose sum is σ = 133964976. Its totient is φ = 108789120.

The previous prime is 120849097. The next prime is 120849109. The reversal of 120849107 is 701948021.

It is a de Polignac number, because none of the positive numbers 2k-120849107 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (120849109) 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, 2444 + ... + 15737.

It is an arithmetic number, because the mean of its divisors is an integer number (11163748).

Almost surely, 2120849107 is an apocalyptic number.

120849107 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

120849107 is a deficient number, since it is larger than the sum of its proper divisors (13115869).

120849107 is a wasteful number, since it uses less digits than its factorization.

120849107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238 (or 18221 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 120849107 is about 10993.1390876310. The cubic root of 120849107 is about 494.4030582575.

The spelling of 120849107 in words is "one hundred twenty million, eight hundred forty-nine thousand, one hundred seven".

Divisors: 1 17 23 289 391 6647 18181 309077 418163 5254309 7108771 120849107