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142344011312 = 24177931720897
BaseRepresentation
bin1000010010010001011…
…1010011111000110000
3111121102012100222202222
42010210113103320300
54313010031330222
6145220354100212
713166263063346
oct2044427237060
9447365328688
10142344011312
1155405535578
122370687a668
13105663a6739
146c64a75996
153a818d8542
hex21245d3e30

142344011312 has 80 divisors (see below), whose sum is σ = 296657976960. Its totient is φ = 65925709824.

The previous prime is 142344011279. The next prime is 142344011323. The reversal of 142344011312 is 213110443241.

It is a super-2 number, since 2×1423440113122 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6801248 + ... + 6822144.

It is an arithmetic number, because the mean of its divisors is an integer number (3708224712).

Almost surely, 2142344011312 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 142344011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148328988480).

142344011312 is an abundant number, since it is smaller than the sum of its proper divisors (154313965648).

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

142344011312 is a wasteful number, since it uses less digits than its factorization.

142344011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21318 (or 21312 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 142344011312 its reverse (213110443241), we get a palindrome (355454454553).

The spelling of 142344011312 in words is "one hundred forty-two billion, three hundred forty-four million, eleven thousand, three hundred twelve".

Divisors: 1 2 4 8 16 17 34 68 79 136 158 272 316 317 632 634 1264 1268 1343 2536 2686 5072 5372 5389 10744 10778 20897 21488 21556 25043 41794 43112 50086 83588 86224 100172 167176 200344 334352 355249 400688 425731 710498 851462 1420996 1650863 1702924 2841992 3301726 3405848 5683984 6603452 6624349 6811696 13206904 13248698 26413808 26497396 28064671 52994792 56129342 105989584 112258684 112613933 224517368 225227866 449034736 450455732 523323571 900911464 1046647142 1801822928 2093294284 4186588568 8373177136 8896500707 17793001414 35586002828 71172005656 142344011312