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74561227 = 13792919
BaseRepresentation
bin1000111000110…
…11011011001011
312012022002202221
410130123123023
5123041424402
611222034511
71563521446
oct434333313
9165262687
1074561227
11390a6a54
1220b78a37
13125a7990
149c8c65d
15682c337
hex471b6cb

74561227 has 12 divisors (see below), whose sum is σ = 81414480. Its totient is φ = 67880592.

The previous prime is 74561213. The next prime is 74561257. The reversal of 74561227 is 72216547.

It is a de Polignac number, because none of the positive numbers 2k-74561227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 74561192 and 74561201.

It is not an unprimeable number, because it can be changed into a prime (74561257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80674 + ... + 81592.

It is an arithmetic number, because the mean of its divisors is an integer number (6784540).

Almost surely, 274561227 is an apocalyptic number.

74561227 is a deficient number, since it is larger than the sum of its proper divisors (6853253).

74561227 is an equidigital number, since it uses as much as digits as its factorization.

74561227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090 (or 1011 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 74561227 is about 8634.8843072736. The cubic root of 74561227 is about 420.8923337161.

The spelling of 74561227 in words is "seventy-four million, five hundred sixty-one thousand, two hundred twenty-seven".

Divisors: 1 13 79 919 1027 6241 11947 72601 81133 943813 5735479 74561227