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1442857230 = 232547347983
BaseRepresentation
bin101011000000000…
…0100000100001110
310201112222202000200
41112000010010032
510423332412410
6355101234330
750520040563
oct12600040416
93645882020
101442857230
11680500aa1
123432629a6
1319cc05999
14d98aa86a
1586a0d3c0
hex5600410e

1442857230 has 96 divisors (see below), whose sum is σ = 3846196224. Its totient is φ = 375108288.

The previous prime is 1442857223. The next prime is 1442857301. The reversal of 1442857230 is 327582441.

It is a happy number.

1442857230 is a `hidden beast` number, since 14 + 42 + 8 + 572 + 30 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1467319 + ... + 1468301.

It is an arithmetic number, because the mean of its divisors is an integer number (40064544).

Almost surely, 21442857230 is an apocalyptic number.

1442857230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1442857230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923098112).

1442857230 is an abundant number, since it is smaller than the sum of its proper divisors (2403338994).

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

1442857230 is a wasteful number, since it uses less digits than its factorization.

1442857230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390 (or 1387 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1442857230 is about 37984.9605765229. The cubic root of 1442857230 is about 1129.9896179901.

The spelling of 1442857230 in words is "one billion, four hundred forty-two million, eight hundred fifty-seven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 47 90 94 141 235 282 347 423 470 694 705 846 983 1041 1410 1735 1966 2082 2115 2949 3123 3470 4230 4915 5205 5898 6246 8847 9830 10410 14745 15615 16309 17694 29490 31230 32618 44235 46201 48927 81545 88470 92402 97854 138603 146781 163090 231005 244635 277206 293562 341101 415809 462010 489270 682202 693015 733905 831618 1023303 1386030 1467810 1705505 2046606 2079045 3069909 3411010 4158090 5116515 6139818 10233030 15349545 16031747 30699090 32063494 48095241 80158735 96190482 144285723 160317470 240476205 288571446 480952410 721428615 1442857230