Search a number
-
+
31025550223012 = 221910335911040131
BaseRepresentation
bin1110000110111101100101…
…11001100110011010100100
311001212000100221100222212011
413003132302321212122210
513031310311324114022
6145552535131404004
76351344025430312
oct703366271463244
9131760327328764
1031025550223012
1199819532a2734
123590b61bb3604
131440909c2c137
14793904c870b2
1538c0a469b977
hex1c37b2e666a4

31025550223012 has 48 divisors (see below), whose sum is σ = 57867955891200. Its totient is φ = 14513089934880.

The previous prime is 31025550222949. The next prime is 31025550223039. The reversal of 31025550223012 is 21032205552013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2709814 + ... + 8330317.

It is an arithmetic number, because the mean of its divisors is an integer number (1205582414400).

Almost surely, 231025550223012 is an apocalyptic number.

It is an amenable number.

31025550223012 is a deficient number, since it is larger than the sum of its proper divisors (26842405668188).

31025550223012 is a wasteful number, since it uses less digits than its factorization.

31025550223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11040616 (or 11040614 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 31025550223012 its reverse (21032205552013), we get a palindrome (52057755775025).

The spelling of 31025550223012 in words is "thirty-one trillion, twenty-five billion, five hundred fifty million, two hundred twenty-three thousand, twelve".

Divisors: 1 2 4 19 38 76 103 206 359 412 718 1436 1957 3914 6821 7828 13642 27284 36977 73954 147908 702563 1405126 2810252 11040131 22080262 44160524 209762489 419524978 839049956 1137133493 2274266986 3963407029 4548533972 7926814058 15853628116 21605536367 43211072734 75304733551 86422145468 150609467102 301218934204 408230923987 816461847974 1632923695948 7756387555753 15512775111506 31025550223012