Search a number
-
+
51601903 = 234154721
BaseRepresentation
bin1100010011011…
…0000111101111
310121002122111121
43010312013233
5101202230103
65042001411
71164415603
oct304660757
9117078447
1051601903
1127145301
1215346267
13a8c9592
146bd3503
1547e46bd
hex31361ef

51601903 has 8 divisors (see below), whose sum is σ = 55159776. Its totient is φ = 48153600.

The previous prime is 51601889. The next prime is 51601981. The reversal of 51601903 is 30910615.

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 51601903 - 25 = 51601871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51601003) 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, 26418 + ... + 28303.

It is an arithmetic number, because the mean of its divisors is an integer number (6894972).

Almost surely, 251601903 is an apocalyptic number.

51601903 is a deficient number, since it is larger than the sum of its proper divisors (3557873).

51601903 is a wasteful number, since it uses less digits than its factorization.

51601903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54785.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 51601903 is about 7183.4464569592. The cubic root of 51601903 is about 372.2961736420.

The spelling of 51601903 in words is "fifty-one million, six hundred one thousand, nine hundred three".

Divisors: 1 23 41 943 54721 1258583 2243561 51601903