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752472121 is a prime number
BaseRepresentation
bin101100110110011…
…101000000111001
31221102220112200211
4230312131000321
53020113101441
6202400031121
724434623162
oct5466350071
91842815624
10752472121
11356829495
121900024a1
13bcb81a9b
1471d16769
15460d9a81
hex2cd9d039

752472121 has 2 divisors, whose sum is σ = 752472122. Its totient is φ = 752472120.

The previous prime is 752472103. The next prime is 752472151. The reversal of 752472121 is 121274257.

752472121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 682515625 + 69956496 = 26125^2 + 8364^2 .

It is a cyclic number.

It is not a de Polignac number, because 752472121 - 215 = 752439353 is a prime.

It is not a weakly prime, because it can be changed into another prime (752472151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376236060 + 376236061.

It is an arithmetic number, because the mean of its divisors is an integer number (376236061).

Almost surely, 2752472121 is an apocalyptic number.

It is an amenable number.

752472121 is a deficient number, since it is larger than the sum of its proper divisors (1).

752472121 is an equidigital number, since it uses as much as digits as its factorization.

752472121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7840, while the sum is 31.

The square root of 752472121 is about 27431.2252916271. The cubic root of 752472121 is about 909.5574553910.

The spelling of 752472121 in words is "seven hundred fifty-two million, four hundred seventy-two thousand, one hundred twenty-one".