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142860463 = 1279111697
BaseRepresentation
bin10001000001111…
…10000010101111
3100221211001201021
420200332002233
5243033013323
622101555011
73353202544
oct1040760257
9327731637
10142860463
11737061a9
123ba15a67
132379c325
1414d8abcb
15c81e05d
hex883e0af

142860463 has 4 divisors (see below), whose sum is σ = 142973440. Its totient is φ = 142747488.

The previous prime is 142860461. The next prime is 142860479. The reversal of 142860463 is 364068241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142860463 - 21 = 142860461 is a prime.

It is a super-2 number, since 2×1428604632 = 40818223777148738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142860461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54570 + ... + 57127.

It is an arithmetic number, because the mean of its divisors is an integer number (35743360).

Almost surely, 2142860463 is an apocalyptic number.

142860463 is a deficient number, since it is larger than the sum of its proper divisors (112977).

142860463 is a wasteful number, since it uses less digits than its factorization.

142860463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112976.

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 142860463 is about 11952.4249840775. The cubic root of 142860463 is about 522.7620083492.

The spelling of 142860463 in words is "one hundred forty-two million, eight hundred sixty thousand, four hundred sixty-three".

Divisors: 1 1279 111697 142860463