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142812246 = 23191252739
BaseRepresentation
bin10001000001100…
…10010001010110
3100221201121120110
420200302101112
5243024442441
622100543450
73352612143
oct1040622126
9327647513
10142812246
1173682a55
123b9b1b86
13237833b5
1414d773ca
15c80eb16
hex8832456

142812246 has 16 divisors (see below), whose sum is σ = 300657600. Its totient is φ = 45098568.

The previous prime is 142812233. The next prime is 142812247. The reversal of 142812246 is 642218241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142812247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626256 + ... + 626483.

It is an arithmetic number, because the mean of its divisors is an integer number (18791100).

Almost surely, 2142812246 is an apocalyptic number.

142812246 is an abundant number, since it is smaller than the sum of its proper divisors (157845354).

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

142812246 is a wasteful number, since it uses less digits than its factorization.

142812246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252763.

The product of its digits is 6144, while the sum is 30.

The square root of 142812246 is about 11950.4077754694. The cubic root of 142812246 is about 522.7031890615.

The spelling of 142812246 in words is "one hundred forty-two million, eight hundred twelve thousand, two hundred forty-six".

Divisors: 1 2 3 6 19 38 57 114 1252739 2505478 3758217 7516434 23802041 47604082 71406123 142812246