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245233315040 = 25571753733329
BaseRepresentation
bin1110010001100100001…
…0110110110011100000
3212102222201202011121212
43210121002312303200
513004214212040130
6304354133005252
723501052533030
oct3443102666340
9772881664555
10245233315040
11950038a429a
123b640183828
131a18268044c
14bc257258c0
1565a45ece95
hex39190b6ce0

245233315040 has 384 divisors, whose sum is σ = 724309205760. Its totient is φ = 76554436608.

The previous prime is 245233315031. The next prime is 245233315051. The reversal of 245233315040 is 40513332542.

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 = 245233314988 and 245233315006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73664096 + ... + 73667424.

It is an arithmetic number, because the mean of its divisors is an integer number (1886221890).

Almost surely, 2245233315040 is an apocalyptic number.

245233315040 is a gapful number since it is divisible by the number (20) 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 245233315040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362154602880).

245233315040 is an abundant number, since it is smaller than the sum of its proper divisors (479075890720).

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

245233315040 is a wasteful number, since it uses less digits than its factorization.

245233315040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3494 (or 3486 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 245233315040 its reverse (40513332542), we get a palindrome (285746647582).

The spelling of 245233315040 in words is "two hundred forty-five billion, two hundred thirty-three million, three hundred fifteen thousand, forty".