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126945706 = 2531197601
BaseRepresentation
bin1111001000100…
…00100110101010
322211212111202211
413210100212222
5224444230311
620332515334
73101010046
oct744204652
9284774684
10126945706
1165726208
123661bb4a
13203b9504
1412c07026
15b228821
hex79109aa

126945706 has 8 divisors (see below), whose sum is σ = 194011524. Its totient is φ = 62275200.

The previous prime is 126945703. The next prime is 126945727. The reversal of 126945706 is 607549621.

It can be written as a sum of positive squares in 2 ways, for example, as 126765081 + 180625 = 11259^2 + 425^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1269457062 = 32230424543676872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126945703) 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, 598695 + ... + 598906.

Almost surely, 2126945706 is an apocalyptic number.

126945706 is a deficient number, since it is larger than the sum of its proper divisors (67065818).

126945706 is a wasteful number, since it uses less digits than its factorization.

126945706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197656.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 126945706 is about 11267.0185053545. The cubic root of 126945706 is about 502.5809293513.

The spelling of 126945706 in words is "one hundred twenty-six million, nine hundred forty-five thousand, seven hundred six".

Divisors: 1 2 53 106 1197601 2395202 63472853 126945706