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142862911 = 314879463
BaseRepresentation
bin10001000001111…
…10101000111111
3100221211012001221
420200332220333
5243033103121
622102014211
73353212642
oct1040765077
9327735057
10142862911
1173708024
123ba17367
13237a0489
1414d8ba59
15c81eb41
hex883ea3f

142862911 has 8 divisors (see below), whose sum is σ = 147789824. Its totient is φ = 137955960.

The previous prime is 142862897. The next prime is 142862933. The reversal of 142862911 is 119268241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 142862911 - 25 = 142862879 is a prime.

It is a super-2 number, since 2×1428629112 = 40819622678787842, 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 (142862981) 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, 10366 + ... + 19828.

It is an arithmetic number, because the mean of its divisors is an integer number (18473728).

Almost surely, 2142862911 is an apocalyptic number.

142862911 is a deficient number, since it is larger than the sum of its proper divisors (4926913).

142862911 is an equidigital number, since it uses as much as digits as its factorization.

142862911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981.

The product of its digits is 6912, while the sum is 34.

The square root of 142862911 is about 11952.5273896361. The cubic root of 142862911 is about 522.7649942794.

The spelling of 142862911 in words is "one hundred forty-two million, eight hundred sixty-two thousand, nine hundred eleven".

Divisors: 1 31 487 9463 15097 293353 4608481 142862911