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31000123010300 = 22521392230224677
BaseRepresentation
bin1110000110001110001110…
…10100011110110011111100
311001202120201212120202101012
413003013013110132303330
513030401222442312200
6145533132050134352
76346453642614653
oct703070724366374
9131676655522335
1031000123010300
1199720952a4454
1235880465813b8
13143b3b7046c42
147925b1c9419a
1538b5b723ca35
hex1c31c751ecfc

31000123010300 has 36 divisors (see below), whose sum is σ = 67754225717640. Its totient is φ = 12310840211520.

The previous prime is 31000123010167. The next prime is 31000123010323. The reversal of 31000123010300 is 301032100013.

It is a super-2 number, since 2×310001230103002 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1115098439 + ... + 1115126238.

It is an arithmetic number, because the mean of its divisors is an integer number (1882061825490).

Almost surely, 231000123010300 is an apocalyptic number.

It is an amenable number.

31000123010300 is an abundant number, since it is smaller than the sum of its proper divisors (36754102707340).

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

31000123010300 is a wasteful number, since it uses less digits than its factorization.

31000123010300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230224830 (or 2230224823 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31000123010300 its reverse (301032100013), we get a palindrome (31301155110313).

The spelling of 31000123010300 in words is "thirty-one trillion, one hundred twenty-three million, ten thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 139 278 556 695 1390 2780 3475 6950 13900 2230224677 4460449354 8920898708 11151123385 22302246770 44604493540 55755616925 111511233850 223022467700 310001230103 620002460206 1240004920412 1550006150515 3100012301030 6200024602060 7750030752575 15500061505150 31000123010300