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142300587081 = 3233755738577
BaseRepresentation
bin1000010010000111000…
…1101010010001001001
3111121022011122210221010
42010201301222101021
54312412422241311
6145212203234133
713165225014162
oct2044161522111
9447264583833
10142300587081
1155392a76284
12236b4218949
131055a3b1423
146c5cdb0769
153a7cbabda6
hex2121c6a449

142300587081 has 16 divisors (see below), whose sum is σ = 203334332544. Its totient is φ = 88289904384.

The previous prime is 142300587071. The next prime is 142300587083. The reversal of 142300587081 is 180785003241.

It is not a de Polignac number, because 142300587081 - 215 = 142300554313 is a prime.

It is a super-2 number, since 2×1423005870812 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142300587083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27866736 + ... + 27871841.

It is an arithmetic number, because the mean of its divisors is an integer number (12708395784).

Almost surely, 2142300587081 is an apocalyptic number.

It is an amenable number.

142300587081 is a deficient number, since it is larger than the sum of its proper divisors (61033745463).

142300587081 is a wasteful number, since it uses less digits than its factorization.

142300587081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55738640.

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 142300587081 in words is "one hundred forty-two billion, three hundred million, five hundred eighty-seven thousand, eighty-one".

Divisors: 1 3 23 37 69 111 851 2553 55738577 167215731 1281987271 2062327349 3845961813 6186982047 47433529027 142300587081