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142380750 = 2353229829
BaseRepresentation
bin10000111110010…
…00111011001110
3100220220200200010
420133020323032
5242422141000
622043414050
73346134141
oct1037107316
9326820603
10142380750
1173408846
123b824326
1323661b85
1414ca4058
15c776d50
hex87c8ece

142380750 has 64 divisors (see below), whose sum is σ = 357364800. Its totient is φ = 37756800.

The previous prime is 142380743. The next prime is 142380751. The reversal of 142380750 is 57083241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142380751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171336 + ... + 172164.

It is an arithmetic number, because the mean of its divisors is an integer number (5583825).

Almost surely, 2142380750 is an apocalyptic number.

142380750 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 142380750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178682400).

142380750 is an abundant number, since it is smaller than the sum of its proper divisors (214984050).

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

142380750 is a wasteful number, since it uses less digits than its factorization.

142380750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 142380750 is about 11932.3405080479. The cubic root of 142380750 is about 522.1762224124.

The spelling of 142380750 in words is "one hundred forty-two million, three hundred eighty thousand, seven hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 125 150 229 250 375 458 687 750 829 1145 1374 1658 2290 2487 3435 4145 4974 5725 6870 8290 11450 12435 17175 20725 24870 28625 34350 41450 57250 62175 85875 103625 124350 171750 189841 207250 310875 379682 569523 621750 949205 1139046 1898410 2847615 4746025 5695230 9492050 14238075 23730125 28476150 47460250 71190375 142380750