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74386481 = 138876451
BaseRepresentation
bin1000110111100…
…00110000110001
312011222020001212
410123300300301
5123020331411
611214205505
71562163131
oct433606061
9164866055
1074386481
1138a97734
1220ab3895
1312546290
149c44ac1
1567e568b
hex46f0c31

74386481 has 8 divisors (see below), whose sum is σ = 80211264. Its totient is φ = 68576400.

The previous prime is 74386471. The next prime is 74386483. The reversal of 74386481 is 18468347.

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

It is a cyclic number.

It is not a de Polignac number, because 74386481 - 214 = 74370097 is a prime.

It is a super-2 number, since 2×743864812 = 11066697111126722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74386483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8306 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (10026408).

Almost surely, 274386481 is an apocalyptic number.

It is an amenable number.

74386481 is a deficient number, since it is larger than the sum of its proper divisors (5824783).

74386481 is a wasteful number, since it uses less digits than its factorization.

74386481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7351.

The product of its digits is 129024, while the sum is 41.

The square root of 74386481 is about 8624.7597647703. The cubic root of 74386481 is about 420.5632673111.

The spelling of 74386481 in words is "seventy-four million, three hundred eighty-six thousand, four hundred eighty-one".

Divisors: 1 13 887 6451 11531 83863 5722037 74386481