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13645230 = 2351937647
BaseRepresentation
bin110100000011…
…010110101110
3221200020201220
4310003112232
511443121410
61204244210
7223661004
oct64032656
927606656
1013645230
11777a955
1246a0666
132a99b01
141b52a74
1512e8070
hexd035ae

13645230 has 64 divisors (see below), whose sum is σ = 35458560. Its totient is φ = 3348864.

The previous prime is 13645223. The next prime is 13645259. The reversal of 13645230 is 3254631.

It is a happy number.

13645230 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 self number, because there is not a number n which added to its sum of digits gives 13645230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20767 + ... + 21413.

It is an arithmetic number, because the mean of its divisors is an integer number (554040).

Almost surely, 213645230 is an apocalyptic number.

13645230 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 13645230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17729280).

13645230 is an abundant number, since it is smaller than the sum of its proper divisors (21813330).

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

13645230 is a wasteful number, since it uses less digits than its factorization.

13645230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 13645230 is about 3693.9450456118. The cubic root of 13645230 is about 238.9609595259.

Adding to 13645230 its reverse (3254631), we get a palindrome (16899861).

The spelling of 13645230 in words is "thirteen million, six hundred forty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 37 38 57 74 95 111 114 185 190 222 285 370 555 570 647 703 1110 1294 1406 1941 2109 3235 3515 3882 4218 6470 7030 9705 10545 12293 19410 21090 23939 24586 36879 47878 61465 71817 73758 119695 122930 143634 184395 239390 359085 368790 454841 718170 909682 1364523 2274205 2729046 4548410 6822615 13645230