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126755042 = 21924192
BaseRepresentation
bin1111000111000…
…10000011100010
322211111211020012
413203202003202
5224422130132
620324444522
73066254141
oct743420342
9284454205
10126755042
1165605a37
1236549742
13203507ab
1412b97758
15b1dc0b2
hex78e20e2

126755042 has 18 divisors (see below), whose sum is σ = 201146283. Its totient is φ = 59898564.

The previous prime is 126755033. The next prime is 126755051. The reversal of 126755042 is 240557621.

It is an interprime number because it is at equal distance from previous prime (126755033) and next prime (126755051).

It can be written as a sum of positive squares in only one way, i.e., 63377521 + 63377521 = 7961^2 + 7961^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=7961.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 302309 + ... + 302727.

Almost surely, 2126755042 is an apocalyptic number.

126755042 is a deficient number, since it is larger than the sum of its proper divisors (74391241).

126755042 is an frugal number, since it uses more digits than its factorization.

126755042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 126755042 is about 11258.5541700522. The cubic root of 126755042 is about 502.3291889099.

Multiplying 126755042 by its sum of digits (32), we get a square (4056161344 = 636882).

The spelling of 126755042 in words is "one hundred twenty-six million, seven hundred fifty-five thousand, forty-two".

Divisors: 1 2 19 38 361 419 722 838 7961 15922 151259 175561 302518 351122 3335659 6671318 63377521 126755042