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12740707 = 715711593
BaseRepresentation
bin110000100110…
…100001100011
3212222021222001
4300212201203
511230200312
61133024431
7213202630
oct60464143
925867861
1012740707
117212311
124325117
1328411a5
141999187
1511ba057
hexc26863

12740707 has 8 divisors (see below), whose sum is σ = 14654816. Its totient is φ = 10850112.

The previous prime is 12740699. The next prime is 12740711. The reversal of 12740707 is 70704721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12740707 - 23 = 12740699 is a prime.

It is a super-2 number, since 2×127407072 = 324651229719698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12740747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4698 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (1831852).

Almost surely, 212740707 is an apocalyptic number.

12740707 is a deficient number, since it is larger than the sum of its proper divisors (1914109).

12740707 is a wasteful number, since it uses less digits than its factorization.

12740707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11757.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 12740707 is about 3569.4126967892. The cubic root of 12740707 is about 233.5596645168.

The spelling of 12740707 in words is "twelve million, seven hundred forty thousand, seven hundred seven".

Divisors: 1 7 157 1099 11593 81151 1820101 12740707