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142540215142 = 2138291661237
BaseRepresentation
bin1000010011000000001…
…1110001001101100110
3111121220212120011211111
42010300003301031212
54313410243341032
6145252043255234
713204164560233
oct2046003611546
9447825504744
10142540215142
11554a62653a6
122376051a51a
1310597c31b90
146c82b4a78a
153a93c42c47
hex21300f1366

142540215142 has 16 divisors (see below), whose sum is σ = 230285390832. Its totient is φ = 65779757280.

The previous prime is 142540215137. The next prime is 142540215149. The reversal of 142540215142 is 241512045241.

It is a super-3 number, since 3×1425402151423 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142540215149) 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, 115053 + ... + 546184.

It is an arithmetic number, because the mean of its divisors is an integer number (14392836927).

Almost surely, 2142540215142 is an apocalyptic number.

142540215142 is a deficient number, since it is larger than the sum of its proper divisors (87745175690).

142540215142 is a wasteful number, since it uses less digits than its factorization.

142540215142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669543.

The product of its (nonzero) digits is 12800, while the sum is 31.

The spelling of 142540215142 in words is "one hundred forty-two billion, five hundred forty million, two hundred fifteen thousand, one hundred forty-two".

Divisors: 1 2 13 26 8291 16582 107783 215566 661237 1322474 8596081 17192162 5482315967 10964631934 71270107571 142540215142