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142037280 = 25335721161
BaseRepresentation
bin10000111011101…
…01000100100000
3100220021020112000
420131311010200
5242330143110
622032204000
73343203600
oct1035650440
9326236460
10142037280
11731a3790
123b699600
1323571738
1414c14c00
15c70a1c0
hex8775120

142037280 has 576 divisors, whose sum is σ = 641208960. Its totient is φ = 29030400.

The previous prime is 142037221. The next prime is 142037303. The reversal of 142037280 is 82730241.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 95 ways as a sum of consecutive naturals, for example, 2328450 + ... + 2328510.

It is an arithmetic number, because the mean of its divisors is an integer number (1113210).

Almost surely, 2142037280 is an apocalyptic number.

142037280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142037280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (320604480).

142037280 is an abundant number, since it is smaller than the sum of its proper divisors (499171680).

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

142037280 is a wasteful number, since it uses less digits than its factorization.

142037280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 142037280 is about 11917.9394192117. The cubic root of 142037280 is about 521.7559964113.

The spelling of 142037280 in words is "one hundred forty-two million, thirty-seven thousand, two hundred eighty".