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123133241 = 71171101223
BaseRepresentation
bin1110101011011…
…01110100111001
322120200211001102
413111231310321
5223010230431
620115101145
73023421020
oct725556471
9276624042
10123133241
1163561910
12352a17b5
131c68310a
14124d38b7
15ac23dcb
hex756dd39

123133241 has 32 divisors (see below), whose sum is σ = 157925376. Its totient is φ = 93240000.

The previous prime is 123133211. The next prime is 123133249. The reversal of 123133241 is 142331321.

It is not a de Polignac number, because 123133241 - 218 = 122871097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123133249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 552056 + ... + 552278.

It is an arithmetic number, because the mean of its divisors is an integer number (4935168).

Almost surely, 2123133241 is an apocalyptic number.

123133241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123133241 is a deficient number, since it is larger than the sum of its proper divisors (34792135).

123133241 is a wasteful number, since it uses less digits than its factorization.

123133241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413.

The product of its digits is 432, while the sum is 20.

The square root of 123133241 is about 11096.5418487022. The cubic root of 123133241 is about 497.4984938045.

Adding to 123133241 its reverse (142331321), we get a palindrome (265464562).

The spelling of 123133241 in words is "one hundred twenty-three million, one hundred thirty-three thousand, two hundred forty-one".

Divisors: 1 7 11 71 77 101 223 497 707 781 1111 1561 2453 5467 7171 7777 15833 17171 22523 50197 78881 110831 157661 174163 247753 552167 1219141 1599133 1734271 11193931 17590463 123133241