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23450345422240 = 25511371951184577
BaseRepresentation
bin1010101010011111101011…
…00000100011110110100000
310002000211102220002120221211
411111033311200203312200
511033202301412002430
6121512535010555504
74640142264142462
oct525176540436640
9102024386076854
1023450345422240
117521265706a90
122768a01298b94
131011486934339
145b1007882132
152a9ee5d4a72a
hex1553f5823da0

23450345422240 has 192 divisors, whose sum is σ = 62103545054208. Its totient is φ = 8292630528000.

The previous prime is 23450345422223. The next prime is 23450345422241. The reversal of 23450345422240 is 4222454305432.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 23450345422193 and 23450345422202.

It is not an unprimeable number, because it can be changed into a prime (23450345422241) 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, 126956832 + ... + 127141408.

It is an arithmetic number, because the mean of its divisors is an integer number (323455963824).

Almost surely, 223450345422240 is an apocalyptic number.

23450345422240 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 23450345422240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31051772527104).

23450345422240 is an abundant number, since it is smaller than the sum of its proper divisors (38653199631968).

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

23450345422240 is a wasteful number, since it uses less digits than its factorization.

23450345422240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186591 (or 186583 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 40.

Adding to 23450345422240 its reverse (4222454305432), we get a palindrome (27672799727672).

The spelling of 23450345422240 in words is "twenty-three trillion, four hundred fifty billion, three hundred forty-five million, four hundred twenty-two thousand, two hundred forty".