Search a number
-
+
31302030310 = 2510945976247
BaseRepresentation
bin11101001001101111…
…110001001111100110
32222210111021220011221
4131021233301033212
51003101304432220
622214023050554
72155456603405
oct351157611746
988714256157
1031302030310
11123031a8741
126096ba0a5a
132c4b061235
14172d33763c
15c330ba9aa
hex749bf13e6

31302030310 has 32 divisors (see below), whose sum is σ = 56882041920. Its totient is φ = 12401258112.

The previous prime is 31302030293. The next prime is 31302030313. The reversal of 31302030310 is 1303020313.

It is a super-2 number, since 2×313020303102 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302030313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5007607 + ... + 5013853.

It is an arithmetic number, because the mean of its divisors is an integer number (1777563810).

Almost surely, 231302030310 is an apocalyptic number.

31302030310 is a deficient number, since it is larger than the sum of its proper divisors (25580011610).

31302030310 is a wasteful number, since it uses less digits than its factorization.

31302030310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10960.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 31302030310 its reverse (1303020313), we get a palindrome (32605050623).

It can be divided in two parts, 313020303 and 10, that added together give a palindrome (313020313).

The spelling of 31302030310 in words is "thirty-one billion, three hundred two million, thirty thousand, three hundred ten".

Divisors: 1 2 5 10 109 218 545 1090 4597 6247 9194 12494 22985 31235 45970 62470 501073 680923 1002146 1361846 2505365 3404615 5010730 6809230 28717459 57434918 143587295 287174590 3130203031 6260406062 15651015155 31302030310