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51788801 = 232251687
BaseRepresentation
bin1100010110001…
…1110000000001
310121110010212202
43011203300001
5101224220201
65050002545
71166124521
oct305436001
9117403782
1051788801
1127262769
1215416455
13a96367c
146c41681
15482ec6b
hex3163c01

51788801 has 4 divisors (see below), whose sum is σ = 54040512. Its totient is φ = 49537092.

The previous prime is 51788797. The next prime is 51788827. The reversal of 51788801 is 10888715.

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 51788801 - 22 = 51788797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51785801) 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, 1125821 + ... + 1125866.

It is an arithmetic number, because the mean of its divisors is an integer number (13510128).

Almost surely, 251788801 is an apocalyptic number.

It is an amenable number.

51788801 is a deficient number, since it is larger than the sum of its proper divisors (2251711).

51788801 is a wasteful number, since it uses less digits than its factorization.

51788801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2251710.

The product of its (nonzero) digits is 17920, while the sum is 38.

The square root of 51788801 is about 7196.4436355744. The cubic root of 51788801 is about 372.7451078139.

The spelling of 51788801 in words is "fifty-one million, seven hundred eighty-eight thousand, eight hundred one".

Divisors: 1 23 2251687 51788801