Search a number
-
+
311051342 = 27197311261
BaseRepresentation
bin10010100010100…
…100010001001110
3210200022001020002
4102202210101032
51114112120332
650510524302
710464615140
oct2242442116
9720261202
10311051342
1114a642528
1288206692
134c59a064
142d44cc90
151c493562
hex128a444e

311051342 has 16 divisors (see below), whose sum is σ = 533548512. Its totient is φ = 133228320.

The previous prime is 311051317. The next prime is 311051353. The reversal of 311051342 is 243150113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21992 + ... + 33252.

It is an arithmetic number, because the mean of its divisors is an integer number (33346782).

Almost surely, 2311051342 is an apocalyptic number.

311051342 is a deficient number, since it is larger than the sum of its proper divisors (222497170).

311051342 is a wasteful number, since it uses less digits than its factorization.

311051342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13243.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 311051342 is about 17636.6476973375. The cubic root of 311051342 is about 677.5541762117.

The spelling of 311051342 in words is "three hundred eleven million, fifty-one thousand, three hundred forty-two".

Divisors: 1 2 7 14 1973 3946 11261 13811 22522 27622 78827 157654 22217953 44435906 155525671 311051342