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14991190 = 251978901
BaseRepresentation
bin111001001011…
…111101010110
31001012122001021
4321023331112
512314204230
61253151354
7241265044
oct71137526
931178037
1014991190
11850a115
12502b55a
13314b636
141dc3394
1514b1c7a
hexe4bf56

14991190 has 16 divisors (see below), whose sum is σ = 28404720. Its totient is φ = 5680800.

The previous prime is 14991181. The next prime is 14991191. The reversal of 14991190 is 9119941.

It is a happy number.

It is a super-2 number, since 2×149911902 = 449471555232200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14991191) 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, 39261 + ... + 39640.

It is an arithmetic number, because the mean of its divisors is an integer number (1775295).

Almost surely, 214991190 is an apocalyptic number.

14991190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14991190 is a deficient number, since it is larger than the sum of its proper divisors (13413530).

14991190 is a wasteful number, since it uses less digits than its factorization.

14991190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78927.

The product of its (nonzero) digits is 2916, while the sum is 34.

The square root of 14991190 is about 3871.8458130458. The cubic root of 14991190 is about 246.5729150253.

The spelling of 14991190 in words is "fourteen million, nine hundred ninety-one thousand, one hundred ninety".

Divisors: 1 2 5 10 19 38 95 190 78901 157802 394505 789010 1499119 2998238 7495595 14991190