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31204033444 = 22315316329129
BaseRepresentation
bin11101000011111001…
…111100001110100100
32222112122220010202101
4131003321330032210
51002401213032234
622200202421444
72153156623303
oct350371741644
988478803671
1031204033444
11122629551a1
12606a201884
132c3396c41c
14172030843a
15c296ae814
hex743e7c3a4

31204033444 has 48 divisors (see below), whose sum is σ = 57786462720. Its totient is φ = 14722456320.

The previous prime is 31204033417. The next prime is 31204033447. The reversal of 31204033444 is 44433040213.

It is a super-2 number, since 2×312040334442 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31204033447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1056672 + ... + 1085800.

It is an arithmetic number, because the mean of its divisors is an integer number (1203884640).

Almost surely, 231204033444 is an apocalyptic number.

It is an amenable number.

31204033444 is a deficient number, since it is larger than the sum of its proper divisors (26582429276).

31204033444 is a wasteful number, since it uses less digits than its factorization.

31204033444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29380 (or 29378 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 31204033444 its reverse (44433040213), we get a palindrome (75637073657).

The spelling of 31204033444 in words is "thirty-one billion, two hundred four million, thirty-three thousand, four hundred forty-four".

Divisors: 1 2 4 31 53 62 106 124 163 212 326 652 1643 3286 5053 6572 8639 10106 17278 20212 29129 34556 58258 116516 267809 535618 902999 1071236 1543837 1805998 3087674 3611996 4748027 6175348 9496054 18992108 47858947 95717894 147188837 191435788 251645431 294377674 503290862 588755348 1006581724 7801008361 15602016722 31204033444