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142207800 = 2335273691
BaseRepresentation
bin10000111100111…
…10101100111000
3100220120220102120
420132132230320
5242401122200
622040001240
73344514000
oct1036365470
9326526376
10142207800
11732aa909
123b760220
1323601237
1414c5b000
15c7409a0
hex879eb38

142207800 has 192 divisors, whose sum is σ = 514848000. Its totient is φ = 32457600.

The previous prime is 142207789. The next prime is 142207823. The reversal of 142207800 is 8702241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205455 + ... + 206145.

It is an arithmetic number, because the mean of its divisors is an integer number (2681500).

Almost surely, 2142207800 is an apocalyptic number.

142207800 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 142207800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257424000).

142207800 is an abundant number, since it is smaller than the sum of its proper divisors (372640200).

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

142207800 is a wasteful number, since it uses less digits than its factorization.

142207800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 142207800 is about 11925.0911946199. The cubic root of 142207800 is about 521.9647074684.

The spelling of 142207800 in words is "one hundred forty-two million, two hundred seven thousand, eight hundred".