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1442331044 = 2271120532281
BaseRepresentation
bin101010111111000…
…0011100110100100
310201112000000020022
41111332003212210
510423214043134
6355042054312
750512416530
oct12576034644
93645000208
101442331044
11680181730
1234304a398
1319ca8032b
14d97b0bc0
158695752e
hex55f839a4

1442331044 has 48 divisors (see below), whose sum is σ = 3149817216. Its totient is φ = 561427200.

The previous prime is 1442331041. The next prime is 1442331053. The reversal of 1442331044 is 4401332441.

It is a super-2 number, since 2×14423310442 = 4160637680972259872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1442331041) 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, 631184 + ... + 633464.

It is an arithmetic number, because the mean of its divisors is an integer number (65621192).

Almost surely, 21442331044 is an apocalyptic number.

1442331044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1442331044 is an abundant number, since it is smaller than the sum of its proper divisors (1707486172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1442331044 is a wasteful number, since it uses less digits than its factorization.

1442331044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1442331044 is about 37978.0337037083. The cubic root of 1442331044 is about 1129.8522384911.

Adding to 1442331044 its reverse (4401332441), we get a palindrome (5843663485).

The spelling of 1442331044 in words is "one billion, four hundred forty-two million, three hundred thirty-one thousand, forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 2053 2281 4106 4562 8212 9124 14371 15967 22583 25091 28742 31934 45166 50182 57484 63868 90332 100364 158081 175637 316162 351274 632324 702548 4682893 9365786 18731572 32780251 51511823 65560502 103023646 131121004 206047292 360582761 721165522 1442331044