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31530230314050 = 2352131131097130439
BaseRepresentation
bin1110010101101001101000…
…01011010111010001000010
311010122021000221222222001210
413022310310023113101002
513113042402430022200
6151020442101310550
76432661333425156
oct712646413272102
9133567027888053
1031530230314050
11a056994025866
12365292a405456
131479398859b40
147b00dd895066
1539a2910e3650
hex1cad342d7442

31530230314050 has 192 divisors, whose sum is σ = 85033285021440. Its totient is φ = 7685532180480.

The previous prime is 31530230314043. The next prime is 31530230314091. The reversal of 31530230314050 is 5041303203513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31530230313999 and 31530230314017.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 241658731 + ... + 241789169.

It is an arithmetic number, because the mean of its divisors is an integer number (442881692820).

Almost surely, 231530230314050 is an apocalyptic number.

31530230314050 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31530230314050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42516642510720).

31530230314050 is an abundant number, since it is smaller than the sum of its proper divisors (53503054707390).

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

31530230314050 is a wasteful number, since it uses less digits than its factorization.

31530230314050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131677 (or 131672 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 31530230314050 its reverse (5041303203513), we get a palindrome (36571533517563).

The spelling of 31530230314050 in words is "thirty-one trillion, five hundred thirty billion, two hundred thirty million, three hundred fourteen thousand, fifty".