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13249672 = 231656209
BaseRepresentation
bin110010100010…
…110010001000
3220221011010121
4302202302020
511342442142
61151553024
7220422532
oct62426210
926834117
1013249672
11752a747
12452b774
13298ba57
141a8c852
15126ac67
hexca2c88

13249672 has 8 divisors (see below), whose sum is σ = 24843150. Its totient is φ = 6624832.

The previous prime is 13249667. The next prime is 13249693. The reversal of 13249672 is 27694231.

It can be written as a sum of positive squares in only one way, i.e., 10407076 + 2842596 = 3226^2 + 1686^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 828097 + ... + 828112.

Almost surely, 213249672 is an apocalyptic number.

It is an amenable number.

13249672 is a deficient number, since it is larger than the sum of its proper divisors (11593478).

13249672 is a wasteful number, since it uses less digits than its factorization.

13249672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656215 (or 1656211 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 13249672 is about 3640.0098900965. The cubic root of 13249672 is about 236.6292219628.

The spelling of 13249672 in words is "thirteen million, two hundred forty-nine thousand, six hundred seventy-two".

Divisors: 1 2 4 8 1656209 3312418 6624836 13249672