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74661705 = 3251725741
BaseRepresentation
bin1000111001100…
…11111101001001
312012111012121100
410130303331021
5123103133310
611224132013
71564420416
oct434637511
9165435540
1074661705
1139165498
1221007009
1312611631
149cb710d
15684bec0
hex4733f49

74661705 has 36 divisors (see below), whose sum is σ = 137497932. Its totient is φ = 37470720.

The previous prime is 74661701. The next prime is 74661721. The reversal of 74661705 is 50716647.

It can be written as a sum of positive squares in 6 ways, for example, as 3697929 + 70963776 = 1923^2 + 8424^2 .

It is not a de Polignac number, because 74661705 - 22 = 74661701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 74661705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74661701) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10135 + ... + 15875.

It is an arithmetic number, because the mean of its divisors is an integer number (3819387).

Almost surely, 274661705 is an apocalyptic number.

It is an amenable number.

74661705 is a deficient number, since it is larger than the sum of its proper divisors (62836227).

74661705 is a wasteful number, since it uses less digits than its factorization.

74661705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5786 (or 5766 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 74661705 is about 8640.7004924369. The cubic root of 74661705 is about 421.0813123542.

The spelling of 74661705 in words is "seventy-four million, six hundred sixty-one thousand, seven hundred five".

Divisors: 1 3 5 9 15 17 45 51 85 153 255 289 765 867 1445 2601 4335 5741 13005 17223 28705 51669 86115 97597 258345 292791 487985 878373 1463955 1659149 4391865 4977447 8295745 14932341 24887235 74661705