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142919011988 = 22271656320089
BaseRepresentation
bin1000010100011010100…
…0110000111010010100
3111122220021100001102022
42011012220300322110
54320144231340423
6145353414232312
713216444362224
oct2050650607224
9448807301368
10142919011988
1155680069045
1223847355698
131062855b51c
146cbb192084
153ab7118dc8
hex2146a30e94

142919011988 has 24 divisors (see below), whose sum is σ = 251081927040. Its totient is φ = 71181426240.

The previous prime is 142919011913. The next prime is 142919012011. The reversal of 142919011988 is 889110919241.

142919011988 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7104248 + ... + 7124336.

It is an arithmetic number, because the mean of its divisors is an integer number (10461746960).

Almost surely, 2142919011988 is an apocalyptic number.

It is an amenable number.

142919011988 is a deficient number, since it is larger than the sum of its proper divisors (108162915052).

142919011988 is a wasteful number, since it uses less digits than its factorization.

142919011988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26927 (or 26925 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 53.

The spelling of 142919011988 in words is "one hundred forty-two billion, nine hundred nineteen million, eleven thousand, nine hundred eighty-eight".

Divisors: 1 2 4 271 542 1084 6563 13126 20089 26252 40178 80356 1778573 3557146 5444119 7114292 10888238 21776476 131844107 263688214 527376428 35729752997 71459505994 142919011988