Search a number
-
+
312123053 = 11122323201
BaseRepresentation
bin10010100110101…
…001111010101101
3210202022111100002
4102212221322231
51114400414203
650545514045
710510000514
oct2246517255
9722274302
10312123053
11150204740
1288642925
134c883ac8
142d64b67b
151c605d88
hex129a9ead

312123053 has 8 divisors (see below), whose sum is σ = 340790976. Its totient is φ = 283504000.

The previous prime is 312123023. The next prime is 312123061. The reversal of 312123053 is 350321213.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-312123053 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 (312123023) 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, 1853 + ... + 25053.

It is an arithmetic number, because the mean of its divisors is an integer number (42598872).

Almost surely, 2312123053 is an apocalyptic number.

It is an amenable number.

312123053 is a deficient number, since it is larger than the sum of its proper divisors (28667923).

312123053 is a wasteful number, since it uses less digits than its factorization.

312123053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24435.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 312123053 is about 17667.0046414213. The cubic root of 312123053 is about 678.3314432808.

Adding to 312123053 its reverse (350321213), we get a palindrome (662444266).

The spelling of 312123053 in words is "three hundred twelve million, one hundred twenty-three thousand, fifty-three".

Divisors: 1 11 1223 13453 23201 255211 28374823 312123053