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20152393567488 = 2833731335373
BaseRepresentation
bin1001001010100000110000…
…10000101000110100000000
32122100112211221211211212000
410211100120100220310000
510120134100223124423
6110505514245104000
74146651045666000
oct445203020506400
978315757754760
1020152393567488
11646a644884936
1223158039b8000
13b32493709000
144d9549876000
1524e323b6a843
hex125418428d00

20152393567488 has 2304 divisors, whose sum is σ = 77757684480000. Its totient is φ = 5143202168832.

The previous prime is 20152393567457. The next prime is 20152393567517. The reversal of 20152393567488 is 88476539325102.

20152393567488 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 2 + 3 + 93 + 5 + 67 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a super-2 number, since 2×201523935674882 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 276060185820 + ... + 276060185892.

It is an arithmetic number, because the mean of its divisors is an integer number (33748995000).

It is a 1-persistent number, because it is pandigital, but 2⋅20152393567488 = 40304787134976 is not.

Almost surely, 220152393567488 is an apocalyptic number.

20152393567488 is a gapful number since it is divisible by the number (28) 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 20152393567488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38878842240000).

20152393567488 is an abundant number, since it is smaller than the sum of its proper divisors (57605290912512).

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

20152393567488 is an frugal number, since it uses more digits than its factorization.

20152393567488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 20152393567488 in words is "twenty trillion, one hundred fifty-two billion, three hundred ninety-three million, five hundred sixty-seven thousand, four hundred eighty-eight".