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74963969 = 237941257
BaseRepresentation
bin1000111011111…
…01110000000001
312020001120020022
410131331300001
5123142321334
611234423225
71600116563
oct435756001
9166046208
1074963969
11393515a3
1221131b15
13126b90a2
149d55333
1568ab82e
hex477dc01

74963969 has 8 divisors (see below), whose sum is σ = 79215360. Its totient is φ = 70795296.

The previous prime is 74963963. The next prime is 74963971. The reversal of 74963969 is 96936947.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-74963969 is a prime.

It is a super-2 number, since 2×749639692 = 11239193296465922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74963969.

It is not an unprimeable number, because it can be changed into a prime (74963963) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18812 + ... + 22445.

It is an arithmetic number, because the mean of its divisors is an integer number (9901920).

Almost surely, 274963969 is an apocalyptic number.

74963969 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

It is an amenable number.

74963969 is a deficient number, since it is larger than the sum of its proper divisors (4251391).

74963969 is a wasteful number, since it uses less digits than its factorization.

74963969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41359.

The product of its digits is 2204496, while the sum is 53.

The square root of 74963969 is about 8658.1735371844. The cubic root of 74963969 is about 421.6487891171.

The spelling of 74963969 in words is "seventy-four million, nine hundred sixty-three thousand, nine hundred sixty-nine".

Divisors: 1 23 79 1817 41257 948911 3259303 74963969