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1320233044 = 221325389097
BaseRepresentation
bin100111010110001…
…0010100001010100
310102000020210021011
41032230102201110
510200434424134
6335001102004
744500536634
oct11654224124
93360223234
101320233044
11618267699
1230a187904
131806a04b0
14c74aa6c4
157ad8a264
hex4eb12854

1320233044 has 12 divisors (see below), whose sum is σ = 2488131604. Its totient is φ = 609338304.

The previous prime is 1320233027. The next prime is 1320233059. The reversal of 1320233044 is 4403320231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 323568144 + 996664900 = 17988^2 + 31570^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12694497 + ... + 12694600.

Almost surely, 21320233044 is an apocalyptic number.

It is an amenable number.

1320233044 is a deficient number, since it is larger than the sum of its proper divisors (1167898560).

1320233044 is a wasteful number, since it uses less digits than its factorization.

1320233044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25389114 (or 25389112 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1320233044 is about 36335.0112701235. The cubic root of 1320233044 is about 1097.0258623069.

Adding to 1320233044 its reverse (4403320231), we get a palindrome (5723553275).

The spelling of 1320233044 in words is "one billion, three hundred twenty million, two hundred thirty-three thousand, forty-four".

Divisors: 1 2 4 13 26 52 25389097 50778194 101556388 330058261 660116522 1320233044