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120471257 = 412729191
BaseRepresentation
bin1110010111000…
…11111011011001
322101200120111102
413023203323121
5221320040012
615542041145
72661663104
oct713437331
9271616442
10120471257
1162003925
12344191b5
131bc6058a
1411ddd73b
15a89a2c2
hex72e3ed9

120471257 has 4 divisors (see below), whose sum is σ = 120504576. Its totient is φ = 120437940.

The previous prime is 120471233. The next prime is 120471259. The reversal of 120471257 is 752174021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120471257 - 212 = 120467161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120471259) 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 3 ways as a sum of consecutive naturals, for example, 10469 + ... + 18722.

It is an arithmetic number, because the mean of its divisors is an integer number (30126144).

Almost surely, 2120471257 is an apocalyptic number.

It is an amenable number.

120471257 is a deficient number, since it is larger than the sum of its proper divisors (33319).

120471257 is an equidigital number, since it uses as much as digits as its factorization.

120471257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33318.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 120471257 is about 10975.9399141941. The cubic root of 120471257 is about 493.8872490959.

The spelling of 120471257 in words is "one hundred twenty million, four hundred seventy-one thousand, two hundred fifty-seven".

Divisors: 1 4127 29191 120471257