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13307345 = 517473331
BaseRepresentation
bin110010110000…
…110111010001
3221001002020122
4302300313101
511401313340
61153120025
7221052632
oct62606721
927032218
1013307345
11756a007
124559015
1329ac08c
141aa5889
15127cdb5
hexcb0dd1

13307345 has 16 divisors (see below), whose sum is σ = 17273088. Its totient is φ = 9803520.

The previous prime is 13307341. The next prime is 13307347. The reversal of 13307345 is 54370331.

13307345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13307345 - 22 = 13307341 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13307341) 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, 2330 + ... + 5660.

It is an arithmetic number, because the mean of its divisors is an integer number (1079568).

Almost surely, 213307345 is an apocalyptic number.

It is an amenable number.

13307345 is a deficient number, since it is larger than the sum of its proper divisors (3965743).

13307345 is a wasteful number, since it uses less digits than its factorization.

13307345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 13307345 is about 3647.9233818708. The cubic root of 13307345 is about 236.9720572135.

Adding to 13307345 its reverse (54370331), we get a palindrome (67677676).

The spelling of 13307345 in words is "thirteen million, three hundred seven thousand, three hundred forty-five".

Divisors: 1 5 17 47 85 235 799 3331 3995 16655 56627 156557 283135 782785 2661469 13307345