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1244101045 = 511472411997
BaseRepresentation
bin100101000100111…
…0111100110110101
310012200222212210111
41022021313212311
510021442213140
6323241223021
742554453515
oct11211674665
93180885714
101244101045
11589298590
122a8791a71
1316a995885
14bb32d845
157434c7ea
hex4a2779b5

1244101045 has 32 divisors (see below), whose sum is σ = 1671031296. Its totient is φ = 881433600.

The previous prime is 1244101043. The next prime is 1244101049. The reversal of 1244101045 is 5401014421.

It is not a de Polignac number, because 1244101045 - 21 = 1244101043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244101043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 621987 + ... + 623983.

It is an arithmetic number, because the mean of its divisors is an integer number (52219728).

Almost surely, 21244101045 is an apocalyptic number.

It is an amenable number.

1244101045 is a deficient number, since it is larger than the sum of its proper divisors (426930251).

1244101045 is a wasteful number, since it uses less digits than its factorization.

1244101045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1244101045 is about 35271.8165820815. The cubic root of 1244101045 is about 1075.5201506584.

Adding to 1244101045 its reverse (5401014421), we get a palindrome (6645115466).

The spelling of 1244101045 in words is "one billion, two hundred forty-four million, one hundred one thousand, forty-five".

Divisors: 1 5 11 47 55 235 241 517 1205 1997 2585 2651 9985 11327 13255 21967 56635 93859 109835 124597 469295 481277 622985 1032449 2406385 5162245 5294047 22620019 26470235 113100095 248820209 1244101045