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74660260 = 22517212917
BaseRepresentation
bin1000111001100…
…11100110100100
312012111010121211
410130303212210
5123103112020
611224121204
71564413253
oct434634644
9165433554
1074660260
11391643a4
1221006204
1312610a8c
149cb679a
15684b85a
hex47339a4

74660260 has 36 divisors (see below), whose sum is σ = 166564692. Its totient is φ = 28105216.

The previous prime is 74660233. The next prime is 74660281. The reversal of 74660260 is 6206647.

It can be written as a sum of positive squares in 6 ways, for example, as 4502884 + 70157376 = 2122^2 + 8376^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 679 + ... + 12238.

It is an arithmetic number, because the mean of its divisors is an integer number (4626797).

Almost surely, 274660260 is an apocalyptic number.

It is an amenable number.

74660260 is an abundant number, since it is smaller than the sum of its proper divisors (91904432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74660260 is a wasteful number, since it uses less digits than its factorization.

74660260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12960 (or 12941 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 74660260 is about 8640.6168761264. The cubic root of 74660260 is about 421.0785958057.

The spelling of 74660260 in words is "seventy-four million, six hundred sixty thousand, two hundred sixty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 289 340 578 1156 1445 2890 5780 12917 25834 51668 64585 129170 219589 258340 439178 878356 1097945 2195890 3733013 4391780 7466026 14932052 18665065 37330130 74660260