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31331322300103 = 779367154378753
BaseRepresentation
bin1110001111110111001000…
…10101100000011011000111
311002221020121201110220211021
413013323210111200123013
513101313022002100403
6150345224420252011
76412420242256030
oct707734425403307
9132836551426737
1031331322300103
119a8a5a26a5981
123620278541007
1314636b9843a77
147a4630827a87
15394eed9708bd
hex1c7ee45606c7

31331322300103 has 16 divisors (see below), whose sum is σ = 36359284142080. Its totient is φ = 26443227672576.

The previous prime is 31331322300079. The next prime is 31331322300133. The reversal of 31331322300103 is 30100322313313.

It is a cyclic number.

It is not a de Polignac number, because 31331322300103 - 25 = 31331322300071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331322300133) 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, 76986426 + ... + 77392327.

It is an arithmetic number, because the mean of its divisors is an integer number (2272455258880).

Almost surely, 231331322300103 is an apocalyptic number.

31331322300103 is a deficient number, since it is larger than the sum of its proper divisors (5027961841977).

31331322300103 is a wasteful number, since it uses less digits than its factorization.

31331322300103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154379206.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31331322300103 its reverse (30100322313313), we get a palindrome (61431644613416).

The spelling of 31331322300103 in words is "thirty-one trillion, three hundred thirty-one billion, three hundred twenty-two million, three hundred thousand, one hundred three".

Divisors: 1 7 79 367 553 2569 28993 202951 154378753 1080651271 12195921487 56657002351 85371450409 396599016457 4475903185729 31331322300103