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31042215350240 = 255194013845939
BaseRepresentation
bin1110000111011100101000…
…01110000000111111100000
311001220121101100202011200112
413003232110032000333200
513032043424112201430
6150004332531110452
76352504014610133
oct703562416007740
9131817340664615
1031042215350240
119988a25329456
123594233142428
131442364734873
147946462b621a
1538c72c777195
hex1c3b94380fe0

31042215350240 has 24 divisors (see below), whose sum is σ = 73337233765320. Its totient is φ = 12416886140032.

The previous prime is 31042215350219. The next prime is 31042215350281. The reversal of 31042215350240 is 4205351224013.

31042215350240 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 31042215350197 and 31042215350206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97006922810 + ... + 97006923129.

It is an arithmetic number, because the mean of its divisors is an integer number (3055718073555).

Almost surely, 231042215350240 is an apocalyptic number.

It is an amenable number.

31042215350240 is an abundant number, since it is smaller than the sum of its proper divisors (42295018415080).

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

31042215350240 is a wasteful number, since it uses less digits than its factorization.

31042215350240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194013845954 (or 194013845946 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 31042215350240 its reverse (4205351224013), we get a palindrome (35247566574253).

The spelling of 31042215350240 in words is "thirty-one trillion, forty-two billion, two hundred fifteen million, three hundred fifty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 194013845939 388027691878 776055383756 970069229695 1552110767512 1940138459390 3104221535024 3880276918780 6208443070048 7760553837560 15521107675120 31042215350240