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142658910 = 23252336803
BaseRepresentation
bin10001000000011…
…00110101011110
3100221102211020100
420200030311132
5243010041120
622053401530
73351403122
oct1040146536
9327384210
10142658910
1173588829
123b9392a6
132372b674
1414d37582
15c7ce490
hex880cd5e

142658910 has 48 divisors (see below), whose sum is σ = 372559824. Its totient is φ = 37873536.

The previous prime is 142658899. The next prime is 142658933. The reversal of 142658910 is 19856241.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17569 + ... + 24371.

It is an arithmetic number, because the mean of its divisors is an integer number (7761663).

Almost surely, 2142658910 is an apocalyptic number.

142658910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142658910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186279912).

142658910 is an abundant number, since it is smaller than the sum of its proper divisors (229900914).

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

142658910 is a wasteful number, since it uses less digits than its factorization.

142658910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7049 (or 7046 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 142658910 is about 11943.9905391791. The cubic root of 142658910 is about 522.5160484376.

The spelling of 142658910 in words is "one hundred forty-two million, six hundred fifty-eight thousand, nine hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 233 466 699 1165 1398 2097 2330 3495 4194 6803 6990 10485 13606 20409 20970 34015 40818 61227 68030 102045 122454 204090 306135 612270 1585099 3170198 4755297 7925495 9510594 14265891 15850990 23776485 28531782 47552970 71329455 142658910