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145543144230 = 2325111017092053
BaseRepresentation
bin1000011110001100001…
…1000010001100100110
3111220200011002210010100
42013203003002030212
54341033021103410
6150510034404530
713341460212441
oct2074303021446
9456604083110
10145543144230
11567a7346480
122425a130746
13109561006b3
1470898b6658
153bbc6b48c0
hex21e30c2326

145543144230 has 192 divisors, whose sum is σ = 417691909440. Its totient is φ = 34867584000.

The previous prime is 145543144213. The next prime is 145543144237. The reversal of 145543144230 is 32441345541.

145543144230 is a `hidden beast` number, since 1 + 4 + 554 + 31 + 4 + 42 + 30 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145543144237) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70891884 + ... + 70893936.

It is an arithmetic number, because the mean of its divisors is an integer number (2175478695).

Almost surely, 2145543144230 is an apocalyptic number.

145543144230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145543144230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208845954720).

145543144230 is an abundant number, since it is smaller than the sum of its proper divisors (272148765210).

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

145543144230 is a wasteful number, since it uses less digits than its factorization.

145543144230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887 (or 2884 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 145543144230 its reverse (32441345541), we get a palindrome (177984489771).

The spelling of 145543144230 in words is "one hundred forty-five billion, five hundred forty-three million, one hundred forty-four thousand, two hundred thirty".