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1444450631 = 13285738891
BaseRepresentation
bin101011000011000…
…1001000101000111
310201122222200202112
41112012021011013
510424234410011
6355155331235
750536425221
oct12606110507
93648880675
101444450631
1168139a158
123438b0b1b
131a0343020
14d9ba3411
1586c2558b
hex56189147

1444450631 has 8 divisors (see below), whose sum is σ = 1556146704. Its totient is φ = 1332838080.

The previous prime is 1444450619. The next prime is 1444450633. The reversal of 1444450631 is 1360544441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1444450631 is a prime.

It is a super-2 number, since 2×14444506312 = 4172875250792596322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444450633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 17696 + ... + 56586.

It is an arithmetic number, because the mean of its divisors is an integer number (194518338).

Almost surely, 21444450631 is an apocalyptic number.

1444450631 is a deficient number, since it is larger than the sum of its proper divisors (111696073).

1444450631 is a wasteful number, since it uses less digits than its factorization.

1444450631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41761.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 1444450631 is about 38005.9288927399. The cubic root of 1444450631 is about 1130.4054281756.

The spelling of 1444450631 in words is "one billion, four hundred forty-four million, four hundred fifty thousand, six hundred thirty-one".

Divisors: 1 13 2857 37141 38891 505583 111111587 1444450631