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445111942 = 211181111781
BaseRepresentation
bin11010100001111…
…101111010000110
31011000120000210111
4122201331322012
51402422040232
6112100143234
714013250312
oct3241757206
91130500714
10445111942
11209288210
12105097b1a
13712a7b62
1443188b42
1529125047
hex1a87de86

445111942 has 16 divisors (see below), whose sum is σ = 732395664. Its totient is φ = 201204000.

The previous prime is 445111903. The next prime is 445111957. The reversal of 445111942 is 249111544.

It is a super-2 number, since 2×4451119422 = 396249281822022728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51909 + ... + 59872.

It is an arithmetic number, because the mean of its divisors is an integer number (45774729).

Almost surely, 2445111942 is an apocalyptic number.

445111942 is a deficient number, since it is larger than the sum of its proper divisors (287283722).

445111942 is a wasteful number, since it uses less digits than its factorization.

445111942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111975.

The product of its digits is 5760, while the sum is 31.

The square root of 445111942 is about 21097.6762227502. The cubic root of 445111942 is about 763.5246842461.

The spelling of 445111942 in words is "four hundred forty-five million, one hundred eleven thousand, nine hundred forty-two".

Divisors: 1 2 11 22 181 362 1991 3982 111781 223562 1229591 2459182 20232361 40464722 222555971 445111942