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142289542893 = 377361358147
BaseRepresentation
bin1000010010000100011…
…1100001111011101101
3111121021101212201011010
42010201013201323231
54312402110333033
6145211130415433
713165032105321
oct2044107417355
9447241781133
10142289542893
1155387812653
12236b0591579
13105580154c4
146c5b737981
153a7bc29863
hex21211e1eed

142289542893 has 8 divisors (see below), whose sum is σ = 189964826208. Its totient is φ = 94736977424.

The previous prime is 142289542841. The next prime is 142289542949. The reversal of 142289542893 is 398245982241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142289542893 - 217 = 142289411821 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142289549893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30676755 + ... + 30681392.

It is an arithmetic number, because the mean of its divisors is an integer number (23745603276).

Almost surely, 2142289542893 is an apocalyptic number.

It is an amenable number.

142289542893 is a deficient number, since it is larger than the sum of its proper divisors (47675283315).

142289542893 is an equidigital number, since it uses as much as digits as its factorization.

142289542893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61358923.

The product of its digits is 9953280, while the sum is 57.

The spelling of 142289542893 in words is "one hundred forty-two billion, two hundred eighty-nine million, five hundred forty-two thousand, eight hundred ninety-three".

Divisors: 1 3 773 2319 61358147 184074441 47429847631 142289542893