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1442331774 = 2321311354547
BaseRepresentation
bin101010111111000…
…0011110001111110
310201112000001020100
41111332003301332
510423214104044
6355042101530
750512421622
oct12576036176
93645001210
101442331774
11680182234
1234304a8a6
1319ca80770
14d97b1182
1586957869
hex55f83c7e

1442331774 has 48 divisors (see below), whose sum is σ = 3395285712. Its totient is φ = 439858944.

The previous prime is 1442331767. The next prime is 1442331811. The reversal of 1442331774 is 4771332441.

It is a super-3 number, since 3×14423317743 (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 832 + ... + 53715.

It is an arithmetic number, because the mean of its divisors is an integer number (70735119).

Almost surely, 21442331774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442331774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1697642856).

1442331774 is an abundant number, since it is smaller than the sum of its proper divisors (1952953938).

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

1442331774 is a wasteful number, since it uses less digits than its factorization.

1442331774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54681 (or 54678 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 1442331774 is about 37978.0433145258. The cubic root of 1442331774 is about 1129.8524291066.

The spelling of 1442331774 in words is "one billion, four hundred forty-two million, three hundred thirty-one thousand, seven hundred seventy-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 113 117 226 234 339 678 1017 1469 2034 2938 4407 8814 13221 26442 54547 109094 163641 327282 490923 709111 981846 1418222 2127333 4254666 6163811 6381999 12327622 12763998 18491433 36982866 55474299 80129543 110948598 160259086 240388629 480777258 721165887 1442331774