Search a number
-
+
30311521230982 = 2172338761536101
BaseRepresentation
bin1101110010001011100110…
…11101001010000010000110
310222022202100000211221221211
412321011303131022002012
512433110443413342412
6144244530504202034
76245635516225345
oct671056335120206
9128282300757854
1030311521230982
119727053573752
1234966ab16931a
1313bb4971720a4
1476b12a6bdb5c
15378713b85ca7
hex1b917374a086

30311521230982 has 16 divisors (see below), whose sum is σ = 50234950788192. Its totient is φ = 13644060707200.

The previous prime is 30311521230967. The next prime is 30311521230983. The reversal of 30311521230982 is 28903212511303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311521230983) 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, 19380767269 + ... + 19380768832.

It is an arithmetic number, because the mean of its divisors is an integer number (3139684424262).

Almost surely, 230311521230982 is an apocalyptic number.

30311521230982 is a deficient number, since it is larger than the sum of its proper divisors (19923429557210).

30311521230982 is a wasteful number, since it uses less digits than its factorization.

30311521230982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38761536143.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 30311521230982 in words is "thirty trillion, three hundred eleven billion, five hundred twenty-one million, two hundred thirty thousand, nine hundred eighty-two".

Divisors: 1 2 17 23 34 46 391 782 38761536101 77523072202 658946113717 891515330323 1317892227434 1783030660646 15155760615491 30311521230982