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142759904 = 257637321
BaseRepresentation
bin10001000001001…
…01011111100000
3100221121221202212
420200211133200
5243021304104
622055501252
73352303430
oct1040453740
9327557685
10142759904
11736476a1
123b987828
1323765621
1414d622c0
15c7ee36e
hex88257e0

142759904 has 24 divisors (see below), whose sum is σ = 321210288. Its totient is φ = 61182720.

The previous prime is 142759879. The next prime is 142759933. The reversal of 142759904 is 409957241.

It is a congruent number.

It is an unprimeable number.

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, 318437 + ... + 318884.

It is an arithmetic number, because the mean of its divisors is an integer number (13383762).

Almost surely, 2142759904 is an apocalyptic number.

142759904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

142759904 is an abundant number, since it is smaller than the sum of its proper divisors (178450384).

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

142759904 is an equidigital number, since it uses as much as digits as its factorization.

142759904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637338 (or 637330 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 142759904 is about 11948.2176076601. The cubic root of 142759904 is about 522.6393227515.

It can be divided in two parts, 14 and 2759904, that multiplied together give a square (38638656 = 62162).

The spelling of 142759904 in words is "one hundred forty-two million, seven hundred fifty-nine thousand, nine hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 637321 1274642 2549284 4461247 5098568 8922494 10197136 17844988 20394272 35689976 71379952 142759904