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142078136782 = 21439313715737
BaseRepresentation
bin1000010001010010000…
…1000101000111001110
3111120201200002011111011
42010110201011013032
54311434000334112
6145134135315434
713156554144061
oct2042441050716
9446650064434
10142078136782
115528944a05a
122365181bb7a
131052329662a
146c3b6268d8
153a683baaa7
hex21148451ce

142078136782 has 16 divisors (see below), whose sum is σ = 213346846080. Its totient is φ = 70962562048.

The previous prime is 142078136779. The next prime is 142078136789. The reversal of 142078136782 is 287631870241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142078136789) 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, 9020418 + ... + 9036154.

It is an arithmetic number, because the mean of its divisors is an integer number (13334177880).

Almost surely, 2142078136782 is an apocalyptic number.

142078136782 is a deficient number, since it is larger than the sum of its proper divisors (71268709298).

142078136782 is a wasteful number, since it uses less digits than its factorization.

142078136782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20315.

The product of its (nonzero) digits is 903168, while the sum is 49.

The spelling of 142078136782 in words is "one hundred forty-two billion, seventy-eight million, one hundred thirty-six thousand, seven hundred eighty-two".

Divisors: 1 2 1439 2878 3137 6274 15737 31474 4514143 9028286 22645543 45291086 49366969 98733938 71039068391 142078136782