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126726 = 2321121
BaseRepresentation
bin11110111100000110
320102211120
4132330012
513023401
62414410
71035315
oct367406
9212746
10126726
1187236
1261406
13458b2
143427c
1527836
hex1ef06

126726 has 8 divisors (see below), whose sum is σ = 253464. Its totient is φ = 42240.

The previous prime is 126719. The next prime is 126733. The reversal of 126726 is 627621.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (126719) and next prime (126733).

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

It is a d-powerful number, because it can be written as 1 + 2 + 76 + 64 + 2 + 65 .

It is a junction number, because it is equal to n+sod(n) for n = 126696 and 126705.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 126726.

It is an unprimeable number.

126726 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10555 + ... + 10566.

It is an arithmetic number, because the mean of its divisors is an integer number (31683).

2126726 is an apocalyptic number.

126726 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

126726 is a wasteful number, since it uses less digits than its factorization.

126726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21126.

The product of its digits is 1008, while the sum is 24.

The square root of 126726 is about 355.9859547791. The cubic root of 126726 is about 50.2290821577.

The spelling of 126726 in words is "one hundred twenty-six thousand, seven hundred twenty-six".

Divisors: 1 2 3 6 21121 42242 63363 126726