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126896893 = 5314916069
BaseRepresentation
bin1111001000001…
…00101011111101
322211210000210221
413210010223331
5224441200033
620331501341
73100414534
oct744045375
9284700727
10126896893
11656a2572
12365b7851
13203a0226
1412bd331b
15b21912d
hex7904afd

126896893 has 8 divisors (see below), whose sum is σ = 130167000. Its totient is φ = 123659328.

The previous prime is 126896879. The next prime is 126896899. The reversal of 126896893 is 398698621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3286969 + 123609924 = 1813^2 + 11118^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 126896893 - 213 = 126888701 is a prime.

It is a super-2 number, since 2×1268968932 = 32205642906106898, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126896893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126896899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138 + ... + 15931.

It is an arithmetic number, because the mean of its divisors is an integer number (16270875).

Almost surely, 2126896893 is an apocalyptic number.

It is an amenable number.

126896893 is a deficient number, since it is larger than the sum of its proper divisors (3270107).

126896893 is a wasteful number, since it uses less digits than its factorization.

126896893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16271.

The product of its digits is 1119744, while the sum is 52.

The square root of 126896893 is about 11264.8521073292. The cubic root of 126896893 is about 502.5165038349.

The spelling of 126896893 in words is "one hundred twenty-six million, eight hundred ninety-six thousand, eight hundred ninety-three".

Divisors: 1 53 149 7897 16069 851657 2394281 126896893