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1031244430240 = 25553711819463
BaseRepresentation
bin11110000000110101111…
…01010011101110100000
310122120211012022221020001
433000122331103232200
5113343442033231430
62105425215025344
7134335125012253
oct17003275235640
93576735287201
101031244430240
11368391661872
12147a4180b254
137632741029b
1437cabc6909a
151bc597553ca
hexf01af53ba0

1031244430240 has 192 divisors, whose sum is σ = 2531419817472. Its totient is φ = 396768153600.

The previous prime is 1031244430213. The next prime is 1031244430247. The reversal of 1031244430240 is 420344421301.

1031244430240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1031244430199 and 1031244430208.

It is not an unprimeable number, because it can be changed into a prime (1031244430247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 108971749 + ... + 108981211.

It is an arithmetic number, because the mean of its divisors is an integer number (13184478216).

Almost surely, 21031244430240 is an apocalyptic number.

1031244430240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031244430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1265709908736).

1031244430240 is an abundant number, since it is smaller than the sum of its proper divisors (1500175387232).

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

1031244430240 is a wasteful number, since it uses less digits than its factorization.

1031244430240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9783 (or 9775 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1031244430240 its reverse (420344421301), we get a palindrome (1451588851541).

The spelling of 1031244430240 in words is "one trillion, thirty-one billion, two hundred forty-four million, four hundred thirty thousand, two hundred forty".