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142699460 = 2257134973
BaseRepresentation
bin10001000000101…
…10101111000100
3100221111212212012
420200112233010
5243012340320
622054313352
73351632261
oct1040265704
9327455765
10142699460
1173606242
123b958858
1323743c67
1414d48268
15c7db4c5
hex8816bc4

142699460 has 12 divisors (see below), whose sum is σ = 299668908. Its totient is φ = 57079776.

The previous prime is 142699439. The next prime is 142699463. The reversal of 142699460 is 64996241.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 125126596 = 4192^2 + 11186^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (142699463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3567467 + ... + 3567506.

It is an arithmetic number, because the mean of its divisors is an integer number (24972409).

Almost surely, 2142699460 is an apocalyptic number.

142699460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142699460 is an abundant number, since it is smaller than the sum of its proper divisors (156969448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142699460 is a wasteful number, since it uses less digits than its factorization.

142699460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134982 (or 7134980 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 142699460 is about 11945.6879249376. The cubic root of 142699460 is about 522.5655511724.

The spelling of 142699460 in words is "one hundred forty-two million, six hundred ninety-nine thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 7134973 14269946 28539892 35674865 71349730 142699460