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51301942 = 297264443
BaseRepresentation
bin1100001110110…
…0111000110110
310120112102000221
43003230320312
5101113130232
65031324554
71162026226
oct303547066
9116472027
1051301942
1126a5a9aa
121522075a
13a822ba3
146b56086
154785897
hex30ece36

51301942 has 8 divisors (see below), whose sum is σ = 77746536. Its totient is φ = 25386432.

The previous prime is 51301927. The next prime is 51301949. The reversal of 51301942 is 24910315.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51301949) 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, 132028 + ... + 132415.

It is an arithmetic number, because the mean of its divisors is an integer number (9718317).

Almost surely, 251301942 is an apocalyptic number.

51301942 is a deficient number, since it is larger than the sum of its proper divisors (26444594).

51301942 is a wasteful number, since it uses less digits than its factorization.

51301942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264542.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 51301942 is about 7162.5373995533. The cubic root of 51301942 is about 371.5733875005.

The spelling of 51301942 in words is "fifty-one million, three hundred one thousand, nine hundred forty-two".

Divisors: 1 2 97 194 264443 528886 25650971 51301942