Search a number
-
+
13009976 = 237474943
BaseRepresentation
bin110001101000…
…010000111000
3220110222022222
4301220100320
511312304401
61142503212
7215403650
oct61502070
926428288
1013009976
117386651
124434b08
132906915
141a29360
15121ec1b
hexc68438

13009976 has 32 divisors (see below), whose sum is σ = 28477440. Its totient is φ = 5455968.

The previous prime is 13009967. The next prime is 13010047. The reversal of 13009976 is 67990031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161 + ... + 5103.

It is an arithmetic number, because the mean of its divisors is an integer number (889920).

Almost surely, 213009976 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 13009976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14238720).

13009976 is an abundant number, since it is smaller than the sum of its proper divisors (15467464).

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

13009976 is a wasteful number, since it uses less digits than its factorization.

13009976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4999 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 13009976 is about 3606.9344324509. The cubic root of 13009976 is about 235.1935993291.

The spelling of 13009976 in words is "thirteen million, nine thousand, nine hundred seventy-six".

Divisors: 1 2 4 7 8 14 28 47 56 94 188 329 376 658 1316 2632 4943 9886 19772 34601 39544 69202 138404 232321 276808 464642 929284 1626247 1858568 3252494 6504988 13009976