Search a number
-
+
312120110 = 25158319717
BaseRepresentation
bin10010100110101…
…001001100101110
3210202022100022002
4102212221030232
51114400320420
650545452302
710506656111
oct2246511456
9722270262
10312120110
11150202505
1288641092
134c882673
142d64a578
151c605075
hex129a932e

312120110 has 16 divisors (see below), whose sum is σ = 562199616. Its totient is φ = 124762848.

The previous prime is 312120079. The next prime is 312120131. The reversal of 312120110 is 11021213.

It is a junction number, because it is equal to n+sod(n) for n = 312120091 and 312120100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5972 + ... + 25688.

It is an arithmetic number, because the mean of its divisors is an integer number (35137476).

Almost surely, 2312120110 is an apocalyptic number.

312120110 is a deficient number, since it is larger than the sum of its proper divisors (250079506).

312120110 is a wasteful number, since it uses less digits than its factorization.

312120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21307.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 312120110 is about 17666.9213503655. The cubic root of 312120110 is about 678.3293112843.

Adding to 312120110 its reverse (11021213), we get a palindrome (323141323).

The spelling of 312120110 in words is "three hundred twelve million, one hundred twenty thousand, one hundred ten".

Divisors: 1 2 5 10 1583 3166 7915 15830 19717 39434 98585 197170 31212011 62424022 156060055 312120110