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313200055 = 57531091549
BaseRepresentation
bin10010101010110…
…000110110110111
3210211100012201001
4102222300312313
51120134400210
651024544131
710522104460
oct2252606667
9724305631
10313200055
1115087a923
1288a82047
134cb7009c
142d84bd67
151c76a03a
hex12ab0db7

313200055 has 32 divisors (see below), whose sum is σ = 441936000. Its totient is φ = 208645632.

The previous prime is 313200053. The next prime is 313200101. The reversal of 313200055 is 550002313.

It is a cyclic number.

It is not a de Polignac number, because 313200055 - 21 = 313200053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313200053) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 201421 + ... + 202969.

It is an arithmetic number, because the mean of its divisors is an integer number (13810500).

Almost surely, 2313200055 is an apocalyptic number.

313200055 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

313200055 is a deficient number, since it is larger than the sum of its proper divisors (128735945).

313200055 is a wasteful number, since it uses less digits than its factorization.

313200055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 313200055 is about 17697.4589983986. The cubic root of 313200055 is about 679.1107573299.

Adding to 313200055 its reverse (550002313), we get a palindrome (863202368).

The spelling of 313200055 in words is "three hundred thirteen million, two hundred thousand, fifty-five".

Divisors: 1 5 7 35 53 109 265 371 545 763 1549 1855 3815 5777 7745 10843 28885 40439 54215 82097 168841 202195 410485 574679 844205 1181887 2873395 5909435 8948573 44742865 62640011 313200055