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142313208769 = 1271120576447
BaseRepresentation
bin1000010010001010000…
…1110011101111000001
3111121100001102001122001
42010202201303233001
54312424140140034
6145213333544001
713165440213124
oct2044241635701
9447301361561
10142313208769
115539a107126
12236b84a5001
131055cbb0394
146c609383bb
153a7dd51a14
hex2122873bc1

142313208769 has 4 divisors (see below), whose sum is σ = 143433785344. Its totient is φ = 141192632196.

The previous prime is 142313208767. The next prime is 142313208809. The reversal of 142313208769 is 967802313241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142313208769 - 21 = 142313208767 is a prime.

It is a super-3 number, since 3×1423132087693 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142313208767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560288097 + ... + 560288350.

It is an arithmetic number, because the mean of its divisors is an integer number (35858446336).

Almost surely, 2142313208769 is an apocalyptic number.

It is an amenable number.

142313208769 is a deficient number, since it is larger than the sum of its proper divisors (1120576575).

142313208769 is a wasteful number, since it uses less digits than its factorization.

142313208769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120576574.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 142313208769 in words is "one hundred forty-two billion, three hundred thirteen million, two hundred eight thousand, seven hundred sixty-nine".

Divisors: 1 127 1120576447 142313208769