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12089390 = 251208939
BaseRepresentation
bin101110000111…
…100000101110
3211202012112012
4232013200232
511043330030
61111041222
7204521015
oct56074056
924665465
1012089390
116907a35
124070212
1326738b1
141869a7c
1510dc095
hexb8782e

12089390 has 8 divisors (see below), whose sum is σ = 21760920. Its totient is φ = 4835752.

The previous prime is 12089381. The next prime is 12089423. The reversal of 12089390 is 9398021.

12089390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604460 + ... + 604479.

It is an arithmetic number, because the mean of its divisors is an integer number (2720115).

Almost surely, 212089390 is an apocalyptic number.

12089390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12089390 is a deficient number, since it is larger than the sum of its proper divisors (9671530).

12089390 is a wasteful number, since it uses less digits than its factorization.

12089390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208946.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 12089390 is about 3476.9800114467. The cubic root of 12089390 is about 229.5099205734.

The spelling of 12089390 in words is "twelve million, eighty-nine thousand, three hundred ninety".

Divisors: 1 2 5 10 1208939 2417878 6044695 12089390