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142713280 = 265895011
BaseRepresentation
bin10001000000110…
…10000111000000
3100221112120211001
420200122013000
5243013311110
622054501344
73352020463
oct1040320700
9327476731
10142713280
1173615666
123b964854
132374a338
1414d4d2da
15c7e063a
hex881a1c0

142713280 has 56 divisors (see below), whose sum is σ = 343722960. Its totient is φ = 56432640.

The previous prime is 142713253. The next prime is 142713323. The reversal of 142713280 is 82317241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25975 + ... + 30985.

It is an arithmetic number, because the mean of its divisors is an integer number (6137910).

Almost surely, 2142713280 is an apocalyptic number.

142713280 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 142713280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171861480).

142713280 is an abundant number, since it is smaller than the sum of its proper divisors (201009680).

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

142713280 is an equidigital number, since it uses as much as digits as its factorization.

142713280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5117 (or 5107 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 142713280 is about 11946.2663623410. The cubic root of 142713280 is about 522.5824202453.

The spelling of 142713280 in words is "one hundred forty-two million, seven hundred thirteen thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 89 160 178 320 356 445 712 890 1424 1780 2848 3560 5011 5696 7120 10022 14240 20044 25055 28480 40088 50110 80176 100220 160352 200440 320704 400880 445979 801760 891958 1603520 1783916 2229895 3567832 4459790 7135664 8919580 14271328 17839160 28542656 35678320 71356640 142713280