[go: up one dir, main page]

Search a number
-
+
142709760 = 21032519163
BaseRepresentation
bin10001000000110…
…01010000000000
3100221112101222200
420200121100000
5243013203020
622054433200
73352004304
oct1040312000
9327471880
10142709760
1173612a56
123b962800
132374885b
1414d4bd04
15c7de590
hex8819400

142709760 has 264 divisors, whose sum is σ = 523704480. Its totient is φ = 35831808.

The previous prime is 142709759. The next prime is 142709789. The reversal of 142709760 is 67907241.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 875439 + ... + 875601.

Almost surely, 2142709760 is an apocalyptic number.

142709760 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 142709760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261852240).

142709760 is an abundant number, since it is smaller than the sum of its proper divisors (380994720).

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

142709760 is a wasteful number, since it uses less digits than its factorization.

142709760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 192 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 142709760 is about 11946.1190350674. The cubic root of 142709760 is about 522.5781237396.

The spelling of 142709760 in words is "one hundred forty-two million, seven hundred nine thousand, seven hundred sixty".