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445353145 = 52913732237
BaseRepresentation
bin11010100010111…
…000110010111001
31011001000021122221
4122202320302321
51403002300040
6112105244041
714015303446
oct3242706271
91131007587
10445353145
11209432456
12105193621
1371360893
144320c9cd
152917174a
hex1a8b8cb9

445353145 has 16 divisors (see below), whose sum is σ = 553502160. Its totient is φ = 343592704.

The previous prime is 445353133. The next prime is 445353157. The reversal of 445353145 is 541353544.

It is an interprime number because it is at equal distance from previous prime (445353133) and next prime (445353157).

It can be written as a sum of positive squares in 8 ways, for example, as 80084601 + 365268544 = 8949^2 + 19112^2 .

It is a cyclic number.

It is not a de Polignac number, because 445353145 - 213 = 445344953 is a prime.

It is a super-2 number, since 2×4453531452 = 396678847522782050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 445353145.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197967 + ... + 200203.

It is an arithmetic number, because the mean of its divisors is an integer number (34593885).

Almost surely, 2445353145 is an apocalyptic number.

It is an amenable number.

445353145 is a deficient number, since it is larger than the sum of its proper divisors (108149015).

445353145 is a wasteful number, since it uses less digits than its factorization.

445353145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644.

The product of its digits is 72000, while the sum is 34.

The square root of 445353145 is about 21103.3917889992. The cubic root of 445353145 is about 763.6625755428.

The spelling of 445353145 in words is "four hundred forty-five million, three hundred fifty-three thousand, one hundred forty-five".

Divisors: 1 5 29 145 1373 2237 6865 11185 39817 64873 199085 324365 3071401 15357005 89070629 445353145