Search a number
-
+
31210330034 = 2135419912239
BaseRepresentation
bin11101000100010001…
…111101011110110010
32222120002202001001102
4131010101331132302
51002404321030114
622200545404402
72153264266562
oct350421753662
988502661042
1031210330034
1112266465994
126070339702
132c35065410
1417210a6da2
15c2a0052de
hex74447d7b2

31210330034 has 32 divisors (see below), whose sum is σ = 50583429120. Its totient is φ = 14357217600.

The previous prime is 31210329967. The next prime is 31210330037. The reversal of 31210330034 is 43003301213.

It is a junction number, because it is equal to n+sod(n) for n = 31210329988 and 31210330015.

It is not an unprimeable number, because it can be changed into a prime (31210330037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13938287 + ... + 13940525.

It is an arithmetic number, because the mean of its divisors is an integer number (1580732160).

Almost surely, 231210330034 is an apocalyptic number.

31210330034 is a deficient number, since it is larger than the sum of its proper divisors (19373099086).

31210330034 is a wasteful number, since it uses less digits than its factorization.

31210330034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31210330034 its reverse (43003301213), we get a palindrome (74213631247).

The spelling of 31210330034 in words is "thirty-one billion, two hundred ten million, three hundred thirty thousand, thirty-four".

Divisors: 1 2 13 26 541 991 1082 1982 2239 4478 7033 12883 14066 25766 29107 58214 536131 1072262 1211299 2218849 2422598 4437698 6969703 13939406 15746887 28845037 31493774 57690074 1200397309 2400794618 15605165017 31210330034