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12983390 = 257185477
BaseRepresentation
bin110001100001…
…110001011110
3220102121212022
4301201301132
511310432030
61142140142
7215233310
oct61416136
926377768
1012983390
117368682
124421652
1328c77a4
141a1d7b0
151216de5
hexc61c5e

12983390 has 16 divisors (see below), whose sum is σ = 26708832. Its totient is φ = 4451424.

The previous prime is 12983381. The next prime is 12983401. The reversal of 12983390 is 9338921.

12983390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 12983390.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92669 + ... + 92808.

It is an arithmetic number, because the mean of its divisors is an integer number (1669302).

Almost surely, 212983390 is an apocalyptic number.

12983390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12983390 is an abundant number, since it is smaller than the sum of its proper divisors (13725442).

12983390 is a wasteful number, since it uses less digits than its factorization.

12983390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185491.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12983390 is about 3603.2471466720. The cubic root of 12983390 is about 235.0332833498.

The spelling of 12983390 in words is "twelve million, nine hundred eighty-three thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 185477 370954 927385 1298339 1854770 2596678 6491695 12983390