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445062149 = 729082901
BaseRepresentation
bin11010100001110…
…001110000000101
31011000110111111022
4122201301300011
51402413442044
6112055120525
714012652200
oct3241616005
91130414438
10445062149
11209253864
12105073145
137128b2ac
1443174937
15291153ee
hex1a871c05

445062149 has 6 divisors (see below), whose sum is σ = 517725414. Its totient is φ = 381481800.

The previous prime is 445062119. The next prime is 445062157. The reversal of 445062149 is 941260544.

It can be written as a sum of positive squares in only one way, i.e., 443944900 + 1117249 = 21070^2 + 1057^2 .

It is a de Polignac number, because none of the positive numbers 2k-445062149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445062109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4541402 + ... + 4541499.

It is an arithmetic number, because the mean of its divisors is an integer number (86287569).

Almost surely, 2445062149 is an apocalyptic number.

445062149 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

445062149 is a deficient number, since it is larger than the sum of its proper divisors (72663265).

445062149 is an equidigital number, since it uses as much as digits as its factorization.

445062149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9082915 (or 9082908 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 445062149 is about 21096.4961308744. The cubic root of 445062149 is about 763.4962123055.

The spelling of 445062149 in words is "four hundred forty-five million, sixty-two thousand, one hundred forty-nine".

Divisors: 1 7 49 9082901 63580307 445062149