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31054243050 = 2335223003143
BaseRepresentation
bin11100111010111110…
…100010010011101010
32222011020000222222000
4130322332202103222
51002044341234200
622133252111430
72146360465515
oct347276422352
988136028860
1031054243050
1112196346486
126028005576
132c0b914a5c
141708475d7c
15c1b472300
hex73afa24ea

31054243050 has 48 divisors (see below), whose sum is σ = 85571695680. Its totient is φ = 8281131120.

The previous prime is 31054243049. The next prime is 31054243067. The reversal of 31054243050 is 5034245013.

31054243050 is a `hidden beast` number, since 31 + 0 + 542 + 43 + 0 + 50 = 666.

It is a super-2 number, since 2×310542430502 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11500222 + ... + 11502921.

It is an arithmetic number, because the mean of its divisors is an integer number (1782743660).

Almost surely, 231054243050 is an apocalyptic number.

31054243050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31054243050 is an abundant number, since it is smaller than the sum of its proper divisors (54517452630).

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

31054243050 is a wasteful number, since it uses less digits than its factorization.

31054243050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23003164 (or 23003153 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 31054243050 its reverse (5034245013), we get a palindrome (36088488063).

The spelling of 31054243050 in words is "thirty-one billion, fifty-four million, two hundred forty-three thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 27 30 45 50 54 75 90 135 150 225 270 450 675 1350 23003143 46006286 69009429 115015715 138018858 207028287 230031430 345047145 414056574 575078575 621084861 690094290 1035141435 1150157150 1242169722 1725235725 2070282870 3105424305 3450471450 5175707175 6210848610 10351414350 15527121525 31054243050