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842157264140 = 2252928110634861
BaseRepresentation
bin11000100000101000111…
…11000000110100001100
32222111202101110122112222
430100110133000310030
5102244214224423030
61442514240514512
7114562304430443
oct14202437006414
92874671418488
10842157264140
112a517a903265
1211727091ba38
1361551c4969a
142ca91247d5a
1516d8e3a33e5
hexc4147c0d0c

842157264140 has 96 divisors (see below), whose sum is σ = 1838130053760. Its totient is φ = 323717990400.

The previous prime is 842157264119. The next prime is 842157264187. The reversal of 842157264140 is 41462751248.

It is a junction number, because it is equal to n+sod(n) for n = 842157264091 and 842157264100.

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, 173245310 + ... + 173250170.

It is an arithmetic number, because the mean of its divisors is an integer number (19147188060).

Almost surely, 2842157264140 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 842157264140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919065026880).

842157264140 is an abundant number, since it is smaller than the sum of its proper divisors (995972789620).

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

842157264140 is a wasteful number, since it uses less digits than its factorization.

842157264140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6243 (or 6241 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 842157264140 in words is "eight hundred forty-two billion, one hundred fifty-seven million, two hundred sixty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 281 290 562 580 1063 1124 1405 2126 2810 4252 4861 5315 5620 8149 9722 10630 16298 19444 21260 24305 30827 32596 40745 48610 61654 81490 97220 123308 140969 154135 162980 281938 298703 308270 563876 597406 616540 704845 1194812 1365941 1409690 1493515 2731882 2819380 2987030 5167243 5463764 5974060 6829705 8662387 10334486 13659410 17324774 20668972 25836215 27318820 34649548 39612289 43311935 51672430 79224578 86623870 103344860 149850047 158449156 173247740 198061445 299700094 396122890 599400188 749250235 792245780 1451995283 1498500470 2903990566 2997000940 5807981132 7259976415 14519952830 29039905660 42107863207 84215726414 168431452828 210539316035 421078632070 842157264140