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126023140 = 2256301157
BaseRepresentation
bin1111000001011…
…11010111100100
322210010122020201
413200233113210
5224230220030
620301040244
73060115255
oct740572744
9283118221
10126023140
1165156061
1236256084
1320155609
1412a46b2c
15b0e52ca
hex782f5e4

126023140 has 12 divisors (see below), whose sum is σ = 264648636. Its totient is φ = 50409248.

The previous prime is 126023119. The next prime is 126023171. The reversal of 126023140 is 41320621.

It can be written as a sum of positive squares in 2 ways, for example, as 45454564 + 80568576 = 6742^2 + 8976^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3150559 + ... + 3150598.

It is an arithmetic number, because the mean of its divisors is an integer number (22054053).

Almost surely, 2126023140 is an apocalyptic number.

126023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126023140 is an abundant number, since it is smaller than the sum of its proper divisors (138625496).

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

126023140 is a wasteful number, since it uses less digits than its factorization.

126023140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301166 (or 6301164 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 126023140 is about 11226.0028505252. The cubic root of 126023140 is about 501.3604814894.

Adding to 126023140 its reverse (41320621), we get a palindrome (167343761).

The spelling of 126023140 in words is "one hundred twenty-six million, twenty-three thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 6301157 12602314 25204628 31505785 63011570 126023140