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126980133 = 378397207
BaseRepresentation
bin1111001000110…
…01000000100101
322211221020222220
413210121000211
5230001331013
620333342553
73101212320
oct744310045
9284836886
10126980133
116574a065
1236637a59
13203cc097
1412c157b7
15b233b23
hex7919025

126980133 has 16 divisors (see below), whose sum is σ = 193751040. Its totient is φ = 72463536.

The previous prime is 126980131. The next prime is 126980141. The reversal of 126980133 is 331089621.

It is not a de Polignac number, because 126980133 - 21 = 126980131 is a prime.

It is a super-2 number, since 2×1269801332 = 32247908353395378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126980094 and 126980103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126980131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14016 + ... + 21222.

It is an arithmetic number, because the mean of its divisors is an integer number (12109440).

Almost surely, 2126980133 is an apocalyptic number.

It is an amenable number.

126980133 is a deficient number, since it is larger than the sum of its proper divisors (66770907).

126980133 is an equidigital number, since it uses as much as digits as its factorization.

126980133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8056.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 126980133 is about 11268.5461795211. The cubic root of 126980133 is about 502.6263576695.

The spelling of 126980133 in words is "one hundred twenty-six million, nine hundred eighty thousand, one hundred thirty-three".

Divisors: 1 3 7 21 839 2517 5873 7207 17619 21621 50449 151347 6046673 18140019 42326711 126980133