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54451220323 = 292303721319
BaseRepresentation
bin110010101101100010…
…111010111101100011
312012112210120120222211
4302231202322331203
51343004003022243
641003050342551
73635231510323
oct625542727543
9165483516884
1054451220323
1121102326835
12a67772aa57
135199cc76c6
1428c797d283
15163a549d9d
hexcad8baf63

54451220323 has 12 divisors (see below), whose sum is σ = 56414809360. Its totient is φ = 52553815776.

The previous prime is 54451220321. The next prime is 54451220359. The reversal of 54451220323 is 32302215445.

It is not a de Polignac number, because 54451220323 - 21 = 54451220321 is a prime.

It is a super-3 number, since 3×544512203233 (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54451220321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2543458 + ... + 2564776.

Almost surely, 254451220323 is an apocalyptic number.

54451220323 is a deficient number, since it is larger than the sum of its proper divisors (1963589037).

54451220323 is a wasteful number, since it uses less digits than its factorization.

54451220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24414 (or 24385 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 54451220323 its reverse (32302215445), we get a palindrome (86753435768).

The spelling of 54451220323 in words is "fifty-four billion, four hundred fifty-one million, two hundred twenty thousand, three hundred twenty-three".

Divisors: 1 29 841 3037 21319 88073 618251 2554117 17929279 64745803 1877628287 54451220323