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51194701 = 173011453
BaseRepresentation
bin1100001101001…
…0101101001101
310120022221221001
43003102231031
5101101212301
65025140301
71161101455
oct303225515
9116287831
1051194701
1126997378
121518a691
13a7b612c
146b28d65
154763c01
hex30d2b4d

51194701 has 4 divisors (see below), whose sum is σ = 54206172. Its totient is φ = 48183232.

The previous prime is 51194659. The next prime is 51194707. The reversal of 51194701 is 10749115.

51194701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39702601 + 11492100 = 6301^2 + 3390^2 .

It is a cyclic number.

It is not a de Polignac number, because 51194701 - 215 = 51161933 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 51194701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51194707) 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 3 ways as a sum of consecutive naturals, for example, 1505710 + ... + 1505743.

It is an arithmetic number, because the mean of its divisors is an integer number (13551543).

Almost surely, 251194701 is an apocalyptic number.

It is an amenable number.

51194701 is a deficient number, since it is larger than the sum of its proper divisors (3011471).

51194701 is a wasteful number, since it uses less digits than its factorization.

51194701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3011470.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 51194701 is about 7155.0472395366. The cubic root of 51194701 is about 371.3142959454.

The spelling of 51194701 in words is "fifty-one million, one hundred ninety-four thousand, seven hundred one".

Divisors: 1 17 3011453 51194701