Search a number
-
+
311060072 = 231131632111
BaseRepresentation
bin10010100010100…
…110011001101000
3210200022111012102
4102202212121220
51114112410242
650511032532
710464652451
oct2242463150
9720274172
10311060072
1114a649044
128820b748
134c5a101b
142d452128
151c495e32
hex128a6668

311060072 has 32 divisors (see below), whose sum is σ = 592289280. Its totient is φ = 153135360.

The previous prime is 311060069. The next prime is 311060261. The reversal of 311060072 is 270060113.

It is a happy number.

311060072 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 146297 + ... + 148407.

It is an arithmetic number, because the mean of its divisors is an integer number (18509040).

Almost surely, 2311060072 is an apocalyptic number.

It is an amenable number.

311060072 is a deficient number, since it is larger than the sum of its proper divisors (281229208).

311060072 is a wasteful number, since it uses less digits than its factorization.

311060072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393 (or 2389 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 311060072 is about 17636.8951916147. The cubic root of 311060072 is about 677.5605149216.

The spelling of 311060072 in words is "three hundred eleven million, sixty thousand, seventy-two".

Divisors: 1 2 4 8 113 163 226 326 452 652 904 1304 2111 4222 8444 16888 18419 36838 73676 147352 238543 344093 477086 688186 954172 1376372 1908344 2752744 38882509 77765018 155530036 311060072