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13091298 = 23111391427
BaseRepresentation
bin110001111100…
…000111100010
3220122002212220
4301330013202
511322410143
61144331510
7216163023
oct61740742
926562786
1013091298
117431760
124473b96
13293493c
141a4ac4a
151238d83
hexc7c1e2

13091298 has 32 divisors (see below), whose sum is σ = 28788480. Its totient is φ = 3935760.

The previous prime is 13091291. The next prime is 13091311. The reversal of 13091298 is 89219031.

13091298 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 (33).

It is not an unprimeable number, because it can be changed into a prime (13091291) 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, 8461 + ... + 9887.

It is an arithmetic number, because the mean of its divisors is an integer number (899640).

Almost surely, 213091298 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13091298, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14394240).

13091298 is an abundant number, since it is smaller than the sum of its proper divisors (15697182).

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

13091298 is a wasteful number, since it uses less digits than its factorization.

13091298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13091298 is about 3618.1898789312. The cubic root of 13091298 is about 235.6826266282.

The spelling of 13091298 in words is "thirteen million, ninety-one thousand, two hundred ninety-eight".

Divisors: 1 2 3 6 11 22 33 66 139 278 417 834 1427 1529 2854 3058 4281 4587 8562 9174 15697 31394 47091 94182 198353 396706 595059 1190118 2181883 4363766 6545649 13091298