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1144422541 = 17478914057
BaseRepresentation
bin100010000110110…
…1000000010001101
32221202102200121001
41010031220002031
54320433010131
6305320540301
740234300603
oct10415500215
92852380531
101144422541
11537aa6659
1227b321691
13153135502
14abdc3873
156a70d261
hex4436808d

1144422541 has 8 divisors (see below), whose sum is σ = 1212080760. Its totient is φ = 1076802048.

The previous prime is 1144422493. The next prime is 1144422553. The reversal of 1144422541 is 1452244411.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 562500 + 1143860041 = 750^2 + 33821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1144422541 - 27 = 1144422413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144426541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74385 + ... + 88441.

It is an arithmetic number, because the mean of its divisors is an integer number (151510095).

Almost surely, 21144422541 is an apocalyptic number.

It is an amenable number.

1144422541 is a deficient number, since it is larger than the sum of its proper divisors (67658219).

1144422541 is a wasteful number, since it uses less digits than its factorization.

1144422541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18863.

The product of its digits is 5120, while the sum is 28.

The square root of 1144422541 is about 33829.3148171819. The cubic root of 1144422541 is about 1045.9930552302.

Adding to 1144422541 its reverse (1452244411), we get a palindrome (2596666952).

The spelling of 1144422541 in words is "one billion, one hundred forty-four million, four hundred twenty-two thousand, five hundred forty-one".

Divisors: 1 17 4789 14057 81413 238969 67318973 1144422541