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53005245930 = 232571323475987
BaseRepresentation
bin110001010111010110…
…111101110111101010
312001211000201111000200
4301113112331313222
51332023320332210
640203354213030
73554343104460
oct612726756752
9161730644020
1053005245930
112053009687a
12a333424176
134cc956cc60
1427cb900830
1515a36230c0
hexc575bddea

53005245930 has 384 divisors, whose sum is σ = 180787396608. Its totient is φ = 10467933696.

The previous prime is 53005245919. The next prime is 53005245961. The reversal of 53005245930 is 3954250035.

53005245930 is a `hidden beast` number, since 53 + 0 + 0 + 524 + 59 + 30 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 8850397 + ... + 8856383.

It is an arithmetic number, because the mean of its divisors is an integer number (470800512).

Almost surely, 253005245930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53005245930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90393698304).

53005245930 is an abundant number, since it is smaller than the sum of its proper divisors (127782150678).

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

53005245930 is a wasteful number, since it uses less digits than its factorization.

53005245930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090 (or 6087 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 53005245930 its reverse (3954250035), we get a palindrome (56959495965).

The spelling of 53005245930 in words is "fifty-three billion, five million, two hundred forty-five thousand, nine hundred thirty".