Search a number
-
+
445980415 = 52931472111
BaseRepresentation
bin11010100101010…
…001111011111111
31011002012011010011
4122211101323333
51403132333130
6112130524051
714023525306
oct3245217377
91132164104
10445980415
11209820761
12105436627
137152024a
144333343d
152924752a
hex1a951eff

445980415 has 32 divisors (see below), whose sum is σ = 583925760. Its totient is φ = 326121600.

The previous prime is 445980371. The next prime is 445980443. The reversal of 445980415 is 514089544.

It is not a de Polignac number, because 445980415 - 211 = 445978367 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210210 + ... + 212320.

It is an arithmetic number, because the mean of its divisors is an integer number (18247680).

Almost surely, 2445980415 is an apocalyptic number.

445980415 is a deficient number, since it is larger than the sum of its proper divisors (137945345).

445980415 is a wasteful number, since it uses less digits than its factorization.

445980415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2223.

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 445980415 is about 21118.2483885383. The cubic root of 445980415 is about 764.0209412633.

The spelling of 445980415 in words is "four hundred forty-five million, nine hundred eighty thousand, four hundred fifteen".

Divisors: 1 5 29 31 47 145 155 235 899 1363 1457 2111 4495 6815 7285 10555 42253 61219 65441 99217 211265 306095 327205 496085 1897789 2877293 3075727 9488945 14386465 15378635 89196083 445980415