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1442245284 = 2233294310709
BaseRepresentation
bin101010111110110…
…1110101010100100
310201111211122121000
41111331232222210
510423203322114
6355040153300
750511611514
oct12575565244
93644748530
101442245284
11680123257
12343008830
1319ca5029c
14d978b844
158693be09
hex55f6eaa4

1442245284 has 96 divisors (see below), whose sum is σ = 3958416000. Its totient is φ = 453333888.

The previous prime is 1442245249. The next prime is 1442245297. The reversal of 1442245284 is 4825422441.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129322 + ... + 140030.

It is an arithmetic number, because the mean of its divisors is an integer number (41233500).

Almost surely, 21442245284 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442245284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1979208000).

1442245284 is an abundant number, since it is smaller than the sum of its proper divisors (2516170716).

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

1442245284 is a wasteful number, since it uses less digits than its factorization.

1442245284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10794 (or 10786 counting only the distinct ones).

The product of its digits is 81920, while the sum is 36.

The square root of 1442245284 is about 37976.9046131988. The cubic root of 1442245284 is about 1129.8298446380.

The spelling of 1442245284 in words is "one billion, four hundred forty-two million, two hundred forty-five thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 27 29 36 43 54 58 86 87 108 116 129 172 174 258 261 348 387 516 522 774 783 1044 1161 1247 1548 1566 2322 2494 3132 3741 4644 4988 7482 10709 11223 14964 21418 22446 32127 33669 42836 44892 64254 67338 96381 128508 134676 192762 289143 310561 385524 460487 578286 621122 920974 931683 1156572 1242244 1381461 1841948 1863366 2762922 2795049 3726732 4144383 5525844 5590098 8288766 8385147 11180196 12433149 13354123 16577532 16770294 24866298 26708246 33540588 40062369 49732596 53416492 80124738 120187107 160249476 240374214 360561321 480748428 721122642 1442245284