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74271071 = 723231647
BaseRepresentation
bin1000110110101…
…00100101011111
312011202100202102
410123110211133
5123003133241
611211515315
71561202510
oct433244537
9164670672
1074271071
1138a18a56
1220a58b3b
13125058a4
149c14a07
1567c139b
hex46d495f

74271071 has 24 divisors (see below), whose sum is σ = 91736064. Its totient is φ = 58837680.

The previous prime is 74271053. The next prime is 74271077. The reversal of 74271071 is 17017247.

It is not a de Polignac number, because 74271071 - 26 = 74271007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74271077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114470 + ... + 115116.

It is an arithmetic number, because the mean of its divisors is an integer number (3822336).

Almost surely, 274271071 is an apocalyptic number.

74271071 is a deficient number, since it is larger than the sum of its proper divisors (17464993).

74271071 is a wasteful number, since it uses less digits than its factorization.

74271071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 2744, while the sum is 29.

The square root of 74271071 is about 8618.0665465057. The cubic root of 74271071 is about 420.3456546061.

The spelling of 74271071 in words is "seventy-four million, two hundred seventy-one thousand, seventy-one".

Divisors: 1 7 23 31 161 217 529 647 713 3703 4529 4991 14881 16399 20057 104167 114793 140399 342263 461311 2395841 3229177 10610153 74271071