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51423101 = 1923117673
BaseRepresentation
bin1100010000101…
…0011101111101
310120202120020022
43010022131331
5101131014401
65034101525
71163042402
oct304123575
9116676208
1051423101
1127032a34
121527a8a5
13a866092
146b882a9
1547ab71b
hex310a77d

51423101 has 8 divisors (see below), whose sum is σ = 56483520. Its totient is φ = 46598112.

The previous prime is 51423067. The next prime is 51423109. The reversal of 51423101 is 10132415.

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 51423101 - 214 = 51406717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 51423101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51423109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58400 + ... + 59273.

It is an arithmetic number, because the mean of its divisors is an integer number (7060440).

Almost surely, 251423101 is an apocalyptic number.

It is an amenable number.

51423101 is a deficient number, since it is larger than the sum of its proper divisors (5060419).

51423101 is a wasteful number, since it uses less digits than its factorization.

51423101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117715.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 51423101 is about 7170.9902384538. The cubic root of 51423101 is about 371.8656705613.

Adding to 51423101 its reverse (10132415), we get a palindrome (61555516).

The spelling of 51423101 in words is "fifty-one million, four hundred twenty-three thousand, one hundred one".

Divisors: 1 19 23 437 117673 2235787 2706479 51423101