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142004288988 = 22323944563583
BaseRepresentation
bin1000010001000000011…
…1010111110111011100
3111120112112010022100200
42010100013113313130
54311311044221423
6145122540423500
713154666353302
oct2042007276734
9446475108320
10142004288988
11552507a0121
1223630b47b90
1310510bab603
146c318c2272
153a61b7ed43
hex21101d7ddc

142004288988 has 18 divisors (see below), whose sum is σ = 358955286144. Its totient is φ = 47334762984.

The previous prime is 142004288977. The next prime is 142004288989. The reversal of 142004288988 is 889882400241.

142004288988 is a `hidden beast` number, since 1 + 4 + 200 + 428 + 8 + 9 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142004288989) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1972281756 + ... + 1972281827.

Almost surely, 2142004288988 is an apocalyptic number.

142004288988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

142004288988 is an abundant number, since it is smaller than the sum of its proper divisors (216950997156).

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

142004288988 is a wasteful number, since it uses less digits than its factorization.

142004288988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944563593 (or 3944563588 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 54.

The spelling of 142004288988 in words is "one hundred forty-two billion, four million, two hundred eighty-eight thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 3944563583 7889127166 11833690749 15778254332 23667381498 35501072247 47334762996 71002144494 142004288988