Search a number
-
+
13258998 = 2331912923
BaseRepresentation
bin110010100101…
…000011110110
3220221121221000
4302211003312
511343241443
61152104130
7220461654
oct62450366
926847830
1013258998
117536755
124535046
13299307c
141a91dd4
15126d8d3
hexca50f6

13258998 has 32 divisors (see below), whose sum is σ = 31017600. Its totient is φ = 4186728.

The previous prime is 13258991. The next prime is 13259053. The reversal of 13258998 is 89985231.

It is a happy number.

13258998 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13258991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5436 + ... + 7487.

It is an arithmetic number, because the mean of its divisors is an integer number (969300).

Almost surely, 213258998 is an apocalyptic number.

13258998 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13258998 is an abundant number, since it is smaller than the sum of its proper divisors (17758602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13258998 is a wasteful number, since it uses less digits than its factorization.

13258998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953 (or 12947 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 13258998 is about 3641.2907052308. The cubic root of 13258998 is about 236.6847274013.

The spelling of 13258998 in words is "thirteen million, two hundred fifty-eight thousand, nine hundred ninety-eight".

Divisors: 1 2 3 6 9 18 19 27 38 54 57 114 171 342 513 1026 12923 25846 38769 77538 116307 232614 245537 348921 491074 697842 736611 1473222 2209833 4419666 6629499 13258998