Search a number
-
+
31313022123202 = 2191359116062989
BaseRepresentation
bin1110001111010101000011…
…00011110111110011000010
311002212111101100110121111121
413013222201203313303002
513101013032130420302
6150333000452102454
76411201610316431
oct707524143676302
9132774340417447
1031313022123202
119a82861729136
12361880b904a2a
131461a61383021
147a37b61bd118
153947cc070e37
hex1c7aa18f7cc2

31313022123202 has 16 divisors (see below), whose sum is σ = 49441985812800. Its totient is φ = 14832372583440.

The previous prime is 31313022123193. The next prime is 31313022123233. The reversal of 31313022123202 is 20232122031313.

It is a super-3 number, since 3×313130221232023 (a number of 41 digits) contains 333 as substring.

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, 2133124 + ... + 8196112.

It is an arithmetic number, because the mean of its divisors is an integer number (3090124113300).

Almost surely, 231313022123202 is an apocalyptic number.

31313022123202 is a deficient number, since it is larger than the sum of its proper divisors (18128963689598).

31313022123202 is a wasteful number, since it uses less digits than its factorization.

31313022123202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198921.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31313022123202 its reverse (20232122031313), we get a palindrome (51545144154515).

The spelling of 31313022123202 in words is "thirty-one trillion, three hundred thirteen billion, twenty-two million, one hundred twenty-three thousand, two hundred two".

Divisors: 1 2 19 38 135911 271822 2582309 5164618 6062989 12125978 115196791 230393582 824026897979 1648053795958 15656511061601 31313022123202