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12693345 = 357120889
BaseRepresentation
bin110000011010…
…111101100001
3212212212222220
4300122331201
511222141340
61132021253
7212614560
oct60327541
925785886
1012693345
11718a775
124301829
132825772
141985bd7
1511aaed0
hexc1af61

12693345 has 16 divisors (see below), whose sum is σ = 23210880. Its totient is φ = 5802624.

The previous prime is 12693277. The next prime is 12693367. The reversal of 12693345 is 54339621.

12693345 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12693345 - 216 = 12627809 is a prime.

It is a super-2 number, since 2×126933452 = 322242014578050, which contains 22 as substring.

12693345 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60340 + ... + 60549.

It is an arithmetic number, because the mean of its divisors is an integer number (1450680).

Almost surely, 212693345 is an apocalyptic number.

12693345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12693345 is a deficient number, since it is larger than the sum of its proper divisors (10517535).

12693345 is a wasteful number, since it uses less digits than its factorization.

12693345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120904.

The product of its digits is 19440, while the sum is 33.

The square root of 12693345 is about 3562.7720948722. The cubic root of 12693345 is about 233.2698954527.

The spelling of 12693345 in words is "twelve million, six hundred ninety-three thousand, three hundred forty-five".

Divisors: 1 3 5 7 15 21 35 105 120889 362667 604445 846223 1813335 2538669 4231115 12693345