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445061061 = 371091867
BaseRepresentation
bin11010100001110…
…001011111000101
31011000110110000000
4122201301133011
51402413423221
6112055111513
714012646054
oct3241613705
91130413000
10445061061
11209252a65
12105072599
137128a953
144317439b
1529114e26
hex1a8717c5

445061061 has 32 divisors (see below), whose sum is σ = 673974400. Its totient is φ = 293827824.

The previous prime is 445061053. The next prime is 445061069. The reversal of 445061061 is 160160544.

445061061 is a `hidden beast` number, since 4 + 45 + 0 + 610 + 6 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (445061053) and next prime (445061069).

It is not a de Polignac number, because 445061061 - 23 = 445061053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445061069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237450 + ... + 239316.

It is an arithmetic number, because the mean of its divisors is an integer number (21061700).

Almost surely, 2445061061 is an apocalyptic number.

It is an amenable number.

445061061 is a deficient number, since it is larger than the sum of its proper divisors (228913339).

445061061 is an equidigital number, since it uses as much as digits as its factorization.

445061061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997 (or 1979 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 445061061 is about 21096.4703445861. The cubic root of 445061061 is about 763.4955901568.

The spelling of 445061061 in words is "four hundred forty-five million, sixty-one thousand, sixty-one".

Divisors: 1 3 9 27 81 109 243 327 729 981 1867 2187 2943 5601 8829 16803 26487 50409 79461 151227 203503 238383 453681 610509 1361043 1831527 4083129 5494581 16483743 49451229 148353687 445061061