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13235490 = 2325199739
BaseRepresentation
bin110010011111…
…010100100010
3220220102200100
4302133110202
511342013430
61151403230
7220333302
oct62372442
926812610
1013235490
117520024
124523516
132985468
141a87602
151266960
hexc9f522

13235490 has 48 divisors (see below), whose sum is σ = 34632000. Its totient is φ = 3506976.

The previous prime is 13235489. The next prime is 13235491. The reversal of 13235490 is 9453231.

13235490 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 an interprime number because it is at equal distance from previous prime (13235489) and next prime (13235491).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13235491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17541 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (721500).

Almost surely, 213235490 is an apocalyptic number.

13235490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13235490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17316000).

13235490 is an abundant number, since it is smaller than the sum of its proper divisors (21396510).

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

13235490 is a wasteful number, since it uses less digits than its factorization.

13235490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 948 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 13235490 is about 3638.0612968998. The cubic root of 13235490 is about 236.5447651884.

The spelling of 13235490 in words is "thirteen million, two hundred thirty-five thousand, four hundred ninety".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 199 398 597 739 995 1194 1478 1791 1990 2217 2985 3582 3695 4434 5970 6651 7390 8955 11085 13302 17910 22170 33255 66510 147061 294122 441183 735305 882366 1323549 1470610 2205915 2647098 4411830 6617745 13235490