Search a number
-
+
13009488 = 24317107149
BaseRepresentation
bin110001101000…
…001001010000
3220110221122220
4301220021100
511312300423
61142501040
7215402352
oct61501120
926427586
1013009488
117386248
124434780
13290662b
141a290d2
15121e9e3
hexc68250

13009488 has 80 divisors (see below), whose sum is σ = 36158400. Its totient is φ = 4016128.

The previous prime is 13009463. The next prime is 13009489. The reversal of 13009488 is 88490031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13009489) 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, 87238 + ... + 87386.

It is an arithmetic number, because the mean of its divisors is an integer number (451980).

Almost surely, 213009488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13009488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18079200).

13009488 is an abundant number, since it is smaller than the sum of its proper divisors (23148912).

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

13009488 is a wasteful number, since it uses less digits than its factorization.

13009488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 13009488 is about 3606.8667843434. The cubic root of 13009488 is about 235.1906586137.

The spelling of 13009488 in words is "thirteen million, nine thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 107 136 149 204 214 272 298 321 408 428 447 596 642 816 856 894 1192 1284 1712 1788 1819 2384 2533 2568 3576 3638 5066 5136 5457 7152 7276 7599 10132 10914 14552 15198 15943 20264 21828 29104 30396 31886 40528 43656 47829 60792 63772 87312 95658 121584 127544 191316 255088 271031 382632 542062 765264 813093 1084124 1626186 2168248 3252372 4336496 6504744 13009488