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1445055164 = 227223231431
BaseRepresentation
bin101011000100001…
…1100101010111100
310201201010102000122
41112020130222330
510424413231124
6355220314112
750544523550
oct12610345274
93651112018
101445055164
11681772373
12343b42938
131a04c5237
14d9cbd860
1586ce475e
hex5621cabc

1445055164 has 24 divisors (see below), whose sum is σ = 2903083008. Its totient is φ = 616529520.

The previous prime is 1445055151. The next prime is 1445055179. The reversal of 1445055164 is 4615505441.

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, 109472 + ... + 121959.

It is an arithmetic number, because the mean of its divisors is an integer number (120961792).

Almost surely, 21445055164 is an apocalyptic number.

1445055164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1445055164 is an abundant number, since it is smaller than the sum of its proper divisors (1458027844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445055164 is a wasteful number, since it uses less digits than its factorization.

1445055164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231665 (or 231663 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 1445055164 is about 38013.8812014769. The cubic root of 1445055164 is about 1130.5631056708.

The spelling of 1445055164 in words is "one billion, four hundred forty-five million, fifty-five thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 223 446 892 1561 3122 6244 231431 462862 925724 1620017 3240034 6480068 51609113 103218226 206436452 361263791 722527582 1445055164