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93661965 = 3252081377
BaseRepresentation
bin1011001010100…
…10101100001101
320112020112001200
411211102230031
5142434140330
613143300113
72215053645
oct545225415
9215215050
1093661965
1148962691
122744a639
13165349a7
14c621525
158351a60
hex5952b0d

93661965 has 12 divisors (see below), whose sum is σ = 162347484. Its totient is φ = 49953024.

The previous prime is 93661951. The next prime is 93661979. The reversal of 93661965 is 56916639.

It is an interprime number because it is at equal distance from previous prime (93661951) and next prime (93661979).

It can be written as a sum of positive squares in 2 ways, for example, as 17867529 + 75794436 = 4227^2 + 8706^2 .

It is not a de Polignac number, because 93661965 - 25 = 93661933 is a prime.

It is a super-2 number, since 2×936619652 = 17545127375322450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 2081377 = 93661965 / (9 + 3 + 6 + 6 + 1 + 9 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 93661965.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1040644 + ... + 1040733.

It is an arithmetic number, because the mean of its divisors is an integer number (13528957).

Almost surely, 293661965 is an apocalyptic number.

It is an amenable number.

93661965 is a deficient number, since it is larger than the sum of its proper divisors (68685519).

93661965 is a wasteful number, since it uses less digits than its factorization.

93661965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081388 (or 2081385 counting only the distinct ones).

The product of its digits is 262440, while the sum is 45.

The square root of 93661965 is about 9677.9111899211. The cubic root of 93661965 is about 454.1379079322.

The spelling of 93661965 in words is "ninety-three million, six hundred sixty-one thousand, nine hundred sixty-five".

Divisors: 1 3 5 9 15 45 2081377 6244131 10406885 18732393 31220655 93661965