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51268451 = 1331127217
BaseRepresentation
bin1100001110010…
…0101101100011
310120110201002112
43003210231203
5101111042301
65030505535
71161526463
oct303445543
9116421075
1051268451
1126a37823
12152052ab
13a810880
146b47ba3
15477a9bb
hex30e4b63

51268451 has 8 divisors (see below), whose sum is σ = 56993664. Its totient is φ = 45797760.

The previous prime is 51268423. The next prime is 51268457. The reversal of 51268451 is 15486215.

51268451 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 a cyclic number.

It is not a de Polignac number, because 51268451 - 26 = 51268387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51268457) 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, 63206 + ... + 64011.

It is an arithmetic number, because the mean of its divisors is an integer number (7124208).

Almost surely, 251268451 is an apocalyptic number.

51268451 is a deficient number, since it is larger than the sum of its proper divisors (5725213).

51268451 is a wasteful number, since it uses less digits than its factorization.

51268451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127261.

The product of its digits is 9600, while the sum is 32.

The square root of 51268451 is about 7160.1990894109. The cubic root of 51268451 is about 371.4925128929.

The spelling of 51268451 in words is "fifty-one million, two hundred sixty-eight thousand, four hundred fifty-one".

Divisors: 1 13 31 403 127217 1653821 3943727 51268451