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12493693 = 29432233
BaseRepresentation
bin101111101010…
…001101111101
3212111202010101
4233222031331
511144244233
61123441101
7211123522
oct57521575
925452111
1012493693
117063773
124226191
132785924
141933149
15116bc7d
hexbea37d

12493693 has 12 divisors (see below), whose sum is σ = 13288860. Its totient is φ = 11731776.

The previous prime is 12493687. The next prime is 12493699. The reversal of 12493693 is 39639421.

It is an interprime number because it is at equal distance from previous prime (12493687) and next prime (12493699).

It can be written as a sum of positive squares in 2 ways, for example, as 4439449 + 8054244 = 2107^2 + 2838^2 .

It is a de Polignac number, because none of the positive numbers 2k-12493693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12493699) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53505 + ... + 53737.

It is an arithmetic number, because the mean of its divisors is an integer number (1107405).

Almost surely, 212493693 is an apocalyptic number.

It is an amenable number.

12493693 is a deficient number, since it is larger than the sum of its proper divisors (795167).

12493693 is an equidigital number, since it uses as much as digits as its factorization.

12493693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 305 counting only the distinct ones).

The product of its digits is 34992, while the sum is 37.

The square root of 12493693 is about 3534.6418489007. The cubic root of 12493693 is about 232.0404024463.

The spelling of 12493693 in words is "twelve million, four hundred ninety-three thousand, six hundred ninety-three".

Divisors: 1 29 43 233 1247 1849 6757 10019 53621 290551 430817 12493693