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126130491 = 3214014499
BaseRepresentation
bin1111000010010…
…01100100111011
322210100002111200
413201021210323
5224242133431
620303225243
73061043244
oct741114473
9283302450
10126130491
1165219783
12362a8223
1320192436
1412a73ccb
15b116ee6
hex784993b

126130491 has 6 divisors (see below), whose sum is σ = 182188500. Its totient is φ = 84086988.

The previous prime is 126130489. The next prime is 126130519. The reversal of 126130491 is 194031621.

126130491 is a `hidden beast` number, since 1 + 2 + 613 + 0 + 49 + 1 = 666.

It is not a de Polignac number, because 126130491 - 21 = 126130489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126130421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7007241 + ... + 7007258.

It is an arithmetic number, because the mean of its divisors is an integer number (30364750).

Almost surely, 2126130491 is an apocalyptic number.

126130491 is a deficient number, since it is larger than the sum of its proper divisors (56058009).

126130491 is a wasteful number, since it uses less digits than its factorization.

126130491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014505 (or 14014502 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 126130491 is about 11230.7831872938. The cubic root of 126130491 is about 501.5027999925.

It can be divided in two parts, 126130 and 491, that added together give a palindrome (126621).

The spelling of 126130491 in words is "one hundred twenty-six million, one hundred thirty thousand, four hundred ninety-one".

Divisors: 1 3 9 14014499 42043497 126130491