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74099047 = 1118137217
BaseRepresentation
bin1000110101010…
…10100101100111
312011102121210011
410122222211213
5122432132142
611204111051
71556555131
oct432524547
9164377704
1074099047
1138910790
1220995487
13124754b9
149bac051
15678a417
hex46aa967

74099047 has 8 divisors (see below), whose sum is σ = 81284112. Its totient is φ = 66988800.

The previous prime is 74099033. The next prime is 74099057.

74099047 is nontrivially palindromic in base 10.

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-74099047 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 (74099027) 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, 16618 + ... + 20599.

It is an arithmetic number, because the mean of its divisors is an integer number (10160514).

Almost surely, 274099047 is an apocalyptic number.

74099047 is a deficient number, since it is larger than the sum of its proper divisors (7185065).

74099047 is a wasteful number, since it uses less digits than its factorization.

74099047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37409.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 74099047 is about 8608.0803318742. The cubic root of 74099047 is about 420.0208738681.

The spelling of 74099047 in words is "seventy-four million, ninety-nine thousand, forty-seven".

Divisors: 1 11 181 1991 37217 409387 6736277 74099047