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1214316659 = 8811378339
BaseRepresentation
bin100100001100001…
…0000000001110011
310010121221200022002
41020120100001303
54441331113114
6320255004215
742043343543
oct11030200163
93117850262
101214316659
115734a5096
1229a80966b
13164767a8a
14b73b9323
15719177de
hex48610073

1214316659 has 4 divisors (see below), whose sum is σ = 1215695880. Its totient is φ = 1212937440.

The previous prime is 1214316641. The next prime is 1214316667. The reversal of 1214316659 is 9566134121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9566134121 = 64314877347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1214316659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1214316679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688289 + ... + 690050.

It is an arithmetic number, because the mean of its divisors is an integer number (303923970).

Almost surely, 21214316659 is an apocalyptic number.

1214316659 is a deficient number, since it is larger than the sum of its proper divisors (1379221).

1214316659 is an equidigital number, since it uses as much as digits as its factorization.

1214316659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379220.

The product of its digits is 38880, while the sum is 38.

The square root of 1214316659 is about 34847.0466323905. The cubic root of 1214316659 is about 1066.8679068336.

The spelling of 1214316659 in words is "one billion, two hundred fourteen million, three hundred sixteen thousand, six hundred fifty-nine".

Divisors: 1 881 1378339 1214316659