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311113130 = 2531111313
BaseRepresentation
bin10010100010110…
…011010110101010
3210200102011222112
4102202303112222
51114121110010
650512122322
710465263236
oct2242632652
9720364875
10311113130
1114a684999
12882363a2
134c5bc213
142d4675c6
151c4a6a05
hex128b35aa

311113130 has 8 divisors (see below), whose sum is σ = 560003652. Its totient is φ = 124445248.

The previous prime is 311113129. The next prime is 311113171. The reversal of 311113130 is 31311113.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 288082729 + 23030401 = 16973^2 + 4799^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15555647 + ... + 15555666.

Almost surely, 2311113130 is an apocalyptic number.

311113130 is a deficient number, since it is larger than the sum of its proper divisors (248890522).

311113130 is a wasteful number, since it uses less digits than its factorization.

311113130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31111320.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 311113130 is about 17638.3993037917. The cubic root of 311113130 is about 677.5990369148.

Adding to 311113130 its reverse (31311113), we get a palindrome (342424243).

The spelling of 311113130 in words is "three hundred eleven million, one hundred thirteen thousand, one hundred thirty".

Divisors: 1 2 5 10 31111313 62222626 155556565 311113130