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51376242 = 238562707
BaseRepresentation
bin1100001111111…
…1000001110010
310120200011221210
43003333001302
5101123014432
65033100550
71162455651
oct303770162
9116604853
1051376242
1127000805
1215257756
13a84a958
146b75198
15479c8cc
hex30ff072

51376242 has 8 divisors (see below), whose sum is σ = 102752496. Its totient is φ = 17125412.

The previous prime is 51376231. The next prime is 51376249. The reversal of 51376242 is 24267315.

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

51376242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (51376249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4281348 + ... + 4281359.

It is an arithmetic number, because the mean of its divisors is an integer number (12844062).

Almost surely, 251376242 is an apocalyptic number.

51376242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51376242 is a wasteful number, since it uses less digits than its factorization.

51376242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8562712.

The product of its digits is 10080, while the sum is 30.

The square root of 51376242 is about 7167.7222323413. The cubic root of 51376242 is about 371.7526827622.

The spelling of 51376242 in words is "fifty-one million, three hundred seventy-six thousand, two hundred forty-two".

Divisors: 1 2 3 6 8562707 17125414 25688121 51376242