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142770600 = 23345271259
BaseRepresentation
bin10001000001010…
…00000110101000
3100221122111110000
420200220012220
5243022124400
622100023000
73352346550
oct1040500650
9327574400
10142770600
1173654735
123b991a60
132376a45b
1414d66160
15c802600
hex88281a8

142770600 has 240 divisors, whose sum is σ = 567151200. Its totient is φ = 32607360.

The previous prime is 142770587. The next prime is 142770601. The reversal of 142770600 is 6077241.

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

It is not an unprimeable number, because it can be changed into a prime (142770601) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 112771 + ... + 114029.

It is an arithmetic number, because the mean of its divisors is an integer number (2363130).

Almost surely, 2142770600 is an apocalyptic number.

142770600 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 142770600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283575600).

142770600 is an abundant number, since it is smaller than the sum of its proper divisors (424380600).

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

142770600 is a wasteful number, since it uses less digits than its factorization.

142770600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294 (or 1276 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 142770600 is about 11948.6651974185. The cubic root of 142770600 is about 522.6523749939.

It can be divided in two parts, 1427 and 70600, that added together give a palindrome (72027).

The spelling of 142770600 in words is "one hundred forty-two million, seven hundred seventy thousand, six hundred".