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51146193 = 372435533
BaseRepresentation
bin1100001100011…
…0110111010001
310120020111101110
43003012313101
5101043134233
65024123533
71160510160
oct303066721
9116214343
1051146193
112696398a
12151665a9
13a79a027
146b153d7
154754663
hex30c6dd1

51146193 has 8 divisors (see below), whose sum is σ = 77937088. Its totient is φ = 29226384.

The previous prime is 51146191. The next prime is 51146237. The reversal of 51146193 is 39164115.

51146193 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51146193 - 21 = 51146191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51146193.

It is not an unprimeable number, because it can be changed into a prime (51146191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1217746 + ... + 1217787.

It is an arithmetic number, because the mean of its divisors is an integer number (9742136).

Almost surely, 251146193 is an apocalyptic number.

It is an amenable number.

51146193 is a deficient number, since it is larger than the sum of its proper divisors (26790895).

51146193 is a wasteful number, since it uses less digits than its factorization.

51146193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2435543.

The product of its digits is 3240, while the sum is 30.

The square root of 51146193 is about 7151.6566612219. The cubic root of 51146193 is about 371.1969829857.

The spelling of 51146193 in words is "fifty-one million, one hundred forty-six thousand, one hundred ninety-three".

Divisors: 1 3 7 21 2435533 7306599 17048731 51146193