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313103121 = 3454922943
BaseRepresentation
bin10010101010011…
…001001100010001
3210211011021201220
4102222121030101
51120123244441
651022515253
710521222042
oct2252311421
9724137656
10313103121
11150814011
1288a35b29
134cb37c26
142d8248c9
151c74b466
hex12a99311

313103121 has 8 divisors (see below), whose sum is σ = 417580800. Its totient is φ = 208680432.

The previous prime is 313103051. The next prime is 313103137. The reversal of 313103121 is 121301313.

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

It is not a de Polignac number, because 313103121 - 211 = 313101073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313103121.

It is not an unprimeable number, because it can be changed into a prime (313103191) 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, 2176 + ... + 25118.

It is an arithmetic number, because the mean of its divisors is an integer number (52197600).

Almost surely, 2313103121 is an apocalyptic number.

It is an amenable number.

313103121 is a deficient number, since it is larger than the sum of its proper divisors (104477679).

313103121 is a wasteful number, since it uses less digits than its factorization.

313103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27495.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 313103121 is about 17694.7201447211. The cubic root of 313103121 is about 679.0406895319.

Adding to 313103121 its reverse (121301313), we get a palindrome (434404434).

The spelling of 313103121 in words is "three hundred thirteen million, one hundred three thousand, one hundred twenty-one".

Divisors: 1 3 4549 13647 22943 68829 104367707 313103121