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142880222 = 271440111
BaseRepresentation
bin10001000010000…
…10110111011110
3100221212001211002
420201002313132
5243034131342
622102230302
73353314262
oct1041026736
9327761732
10142880222
117371a031
123ba25392
13237a8314
1414d940a2
15c824d32
hex8842dde

142880222 has 4 divisors (see below), whose sum is σ = 214320336. Its totient is φ = 71440110.

The previous prime is 142880219. The next prime is 142880263. The reversal of 142880222 is 222088241.

142880222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35720054 + ... + 35720057.

It is an arithmetic number, because the mean of its divisors is an integer number (53580084).

Almost surely, 2142880222 is an apocalyptic number.

142880222 is a deficient number, since it is larger than the sum of its proper divisors (71440114).

142880222 is an equidigital number, since it uses as much as digits as its factorization.

142880222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71440113.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 142880222 is about 11953.2515241670. The cubic root of 142880222 is about 522.7861082719.

The spelling of 142880222 in words is "one hundred forty-two million, eight hundred eighty thousand, two hundred twenty-two".

Divisors: 1 2 71440111 142880222