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31240043430110 = 256151213185951
BaseRepresentation
bin1110001101001101000111…
…01100010000000011011110
311002121112000100011212212122
413012212203230100003132
513043314102104230420
6150235251113302542
76403006253545364
oct706464354200336
9132545010155778
1031240043430110
119a549120a9939
123606643404a52
131457c00aa43a8
147a0051b49634
1539295a1c9725
hex1c69a3b100de

31240043430110 has 16 divisors (see below), whose sum is σ = 57153915522432. Its totient is φ = 12291164628000.

The previous prime is 31240043430097. The next prime is 31240043430131. The reversal of 31240043430110 is 1103434004213.

It is a happy number.

It is a super-3 number, since 3×312400434301103 (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 31240043430110.

It is a congruent number.

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, 25606592366 + ... + 25606593585.

It is an arithmetic number, because the mean of its divisors is an integer number (3572119720152).

Almost surely, 231240043430110 is an apocalyptic number.

31240043430110 is a deficient number, since it is larger than the sum of its proper divisors (25913872092322).

31240043430110 is a wasteful number, since it uses less digits than its factorization.

31240043430110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51213186019.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31240043430110 its reverse (1103434004213), we get a palindrome (32343477434323).

The spelling of 31240043430110 in words is "thirty-one trillion, two hundred forty billion, forty-three million, four hundred thirty thousand, one hundred ten".

Divisors: 1 2 5 10 61 122 305 610 51213185951 102426371902 256065929755 512131859510 3124004343011 6248008686022 15620021715055 31240043430110