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1444310945 = 57113751457
BaseRepresentation
bin101011000010110…
…0110111110100001
310201122201121010222
41112011212332201
510424220422240
6355152332425
750535304040
oct12605467641
93648647128
101444310945
11681304210
12343844115
131a02c457c
14d9b68557
1586be8eb5
hex56166fa1

1444310945 has 16 divisors (see below), whose sum is σ = 2160839808. Its totient is φ = 900349440.

The previous prime is 1444310941. The next prime is 1444310953. The reversal of 1444310945 is 5490134441.

It is not a de Polignac number, because 1444310945 - 22 = 1444310941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1444310941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1875344 + ... + 1876113.

It is an arithmetic number, because the mean of its divisors is an integer number (135052488).

Almost surely, 21444310945 is an apocalyptic number.

It is an amenable number.

1444310945 is a deficient number, since it is larger than the sum of its proper divisors (716528863).

1444310945 is a wasteful number, since it uses less digits than its factorization.

1444310945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751480.

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

The square root of 1444310945 is about 38004.0911613474. The cubic root of 1444310945 is about 1130.3689882772.

The spelling of 1444310945 in words is "one billion, four hundred forty-four million, three hundred ten thousand, nine hundred forty-five".

Divisors: 1 5 7 11 35 55 77 385 3751457 18757285 26260199 41266027 131300995 206330135 288862189 1444310945