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51412013 = 127404819
BaseRepresentation
bin1100010000011…
…1110000101101
310120202000000122
43010013300231
5101130141023
65033534325
71162665152
oct304076055
9116660018
1051412013
1127025674
12152743a5
13a861013
146b84229
1547a82c8
hex3107c2d

51412013 has 4 divisors (see below), whose sum is σ = 51816960. Its totient is φ = 51007068.

The previous prime is 51411989. The next prime is 51412019. The reversal of 51412013 is 31021415.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51412013 - 214 = 51395629 is a prime.

It is a super-3 number, since 3×514120133 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51411982 and 51412000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51412019) 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, 202283 + ... + 202536.

It is an arithmetic number, because the mean of its divisors is an integer number (12954240).

Almost surely, 251412013 is an apocalyptic number.

It is an amenable number.

51412013 is a deficient number, since it is larger than the sum of its proper divisors (404947).

51412013 is a wasteful number, since it uses less digits than its factorization.

51412013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404946.

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

The square root of 51412013 is about 7170.2170817905. The cubic root of 51412013 is about 371.8389410509.

Adding to 51412013 its reverse (31021415), we get a palindrome (82433428).

The spelling of 51412013 in words is "fifty-one million, four hundred twelve thousand, thirteen".

Divisors: 1 127 404819 51412013