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31233331101130 = 2561215212379173
BaseRepresentation
bin1110001101000000100111…
…00110101111110111001010
311002120212200112202020112121
413012200103212233313022
513043211330230214010
6150232221053001454
76402351026646214
oct706402346576712
9132525615666477
1031233331101130
119a51a88178814
12360528b48328a
1314573a12705b2
1479d9b64b35b4
153926b5c863da
hex1c68139afdca

31233331101130 has 32 divisors (see below), whose sum is σ = 57144314436048. Its totient is φ = 12287947545600.

The previous prime is 31233331101047. The next prime is 31233331101139. The reversal of 31233331101130 is 3110113333213.

It can be written as a sum of positive squares in 8 ways, for example, as 4940710918441 + 26292620182689 = 2222771^2 + 5127633^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31233331101095 and 31233331101104.

It is not an unprimeable number, because it can be changed into a prime (31233331101139) 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, 11938224 + ... + 14317396.

Almost surely, 231233331101130 is an apocalyptic number.

31233331101130 is a deficient number, since it is larger than the sum of its proper divisors (25910983334918).

31233331101130 is a wasteful number, since it uses less digits than its factorization.

31233331101130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400762.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31233331101130 its reverse (3110113333213), we get a palindrome (34343444434343).

The spelling of 31233331101130 in words is "thirty-one trillion, two hundred thirty-three billion, three hundred thirty-one million, one hundred one thousand, one hundred thirty".

Divisors: 1 2 5 10 61 122 305 610 21521 43042 107605 215210 1312781 2379173 2625562 4758346 6563905 11895865 13127810 23791730 145129553 290259106 725647765 1451295530 51202182133 102404364266 256010910665 512021821330 3123333110113 6246666220226 15616665550565 31233331101130