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19315714 = 211279817
BaseRepresentation
bin100100110101…
…1110000000010
31100100100011211
41021223300002
514421100324
61530000334
7323116015
oct111536002
940310154
1019315714
11a9a3200
1265760aa
134003b22
1427cb37c
151a68294
hex126bc02

19315714 has 12 divisors (see below), whose sum is σ = 31847382. Its totient is φ = 8779760.

The previous prime is 19315687. The next prime is 19315717. The reversal of 19315714 is 41751391.

It can be written as a sum of positive squares in only one way, i.e., 19070689 + 245025 = 4367^2 + 495^2 .

It is not an unprimeable number, because it can be changed into a prime (19315717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39667 + ... + 40150.

Almost surely, 219315714 is an apocalyptic number.

19315714 is a deficient number, since it is larger than the sum of its proper divisors (12531668).

19315714 is a wasteful number, since it uses less digits than its factorization.

19315714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79841 (or 79830 counting only the distinct ones).

The product of its digits is 3780, while the sum is 31.

The square root of 19315714 is about 4394.9646187427. The cubic root of 19315714 is about 268.3100388284.

The spelling of 19315714 in words is "nineteen million, three hundred fifteen thousand, seven hundred fourteen".

Divisors: 1 2 11 22 121 242 79817 159634 877987 1755974 9657857 19315714