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126855460 = 2256342773
BaseRepresentation
bin1111000111110…
…10100100100100
322211200220222101
413203322210210
5224433333320
620330541444
73100152664
oct743724444
9284626871
10126855460
1165674426
1236597884
1320387404
1412bc21a4
15b20bc0a
hex78fa924

126855460 has 12 divisors (see below), whose sum is σ = 266396508. Its totient is φ = 50742176.

The previous prime is 126855439. The next prime is 126855467. The reversal of 126855460 is 64558621.

It can be written as a sum of positive squares in 2 ways, for example, as 42068196 + 84787264 = 6486^2 + 9208^2 .

It is not an unprimeable number, because it can be changed into a prime (126855467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3171367 + ... + 3171406.

It is an arithmetic number, because the mean of its divisors is an integer number (22199709).

Almost surely, 2126855460 is an apocalyptic number.

126855460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126855460 is an abundant number, since it is smaller than the sum of its proper divisors (139541048).

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

126855460 is a wasteful number, since it uses less digits than its factorization.

126855460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6342782 (or 6342780 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 126855460 is about 11263.0129183980. The cubic root of 126855460 is about 502.4618057981.

It can be divided in two parts, 12685 and 5460, that added together give a triangular number (18145 = T190).

The spelling of 126855460 in words is "one hundred twenty-six million, eight hundred fifty-five thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 6342773 12685546 25371092 31713865 63427730 126855460