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31061132663132 = 221113291872506189
BaseRepresentation
bin1110000111111111110111…
…10001110101100101011100
311001222102012202000020102202
413003333323301311211130
513032401144430210012
6150021142022511032
76354043552245635
oct703777361654534
9131872182006382
1031061132663132
119995a52698640
123597a32595478
13144408aa10b30
1479551c88888c
1538ce8842bcc2
hex1c3ffbc7595c

31061132663132 has 48 divisors (see below), whose sum is σ = 66062018383200. Its totient is φ = 12583241583360.

The previous prime is 31061132663117. The next prime is 31061132663147. The reversal of 31061132663132 is 23136623116013.

It is an interprime number because it is at equal distance from previous prime (31061132663117) and next prime (31061132663147).

It is a super-2 number, since 2×310611326631322 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936236507 + ... + 936269682.

It is an arithmetic number, because the mean of its divisors is an integer number (1376292049650).

Almost surely, 231061132663132 is an apocalyptic number.

It is an amenable number.

31061132663132 is an abundant number, since it is smaller than the sum of its proper divisors (35000885720068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31061132663132 is a wasteful number, since it uses less digits than its factorization.

31061132663132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872506246 (or 1872506244 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 38.

Adding to 31061132663132 its reverse (23136623116013), we get a palindrome (54197755779145).

The spelling of 31061132663132 in words is "thirty-one trillion, sixty-one billion, one hundred thirty-two million, six hundred sixty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 11 13 22 26 29 44 52 58 116 143 286 319 377 572 638 754 1276 1508 4147 8294 16588 1872506189 3745012378 7490024756 20597568079 24342580457 41195136158 48685160914 54302679481 82390272316 97370321828 108605358962 217210717924 267768385027 535536770054 597329474291 705934833253 1071073540108 1194658948582 1411869666506 2389317897164 2823739333012 7765283165783 15530566331566 31061132663132