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5391205512 = 23371117712417
BaseRepresentation
bin1010000010101011…
…10100010010001000
3111220201111121122020
411001111310102020
542020122034022
62250544124440
7250412330220
oct50125642210
914821447566
105391205512
112317216550
121065606720
1367bc11244
14392017080
1521847e35c
hex141574488

5391205512 has 256 divisors, whose sum is σ = 18050273280. Its totient is φ = 1298841600.

The previous prime is 5391205511. The next prime is 5391205549. The reversal of 5391205512 is 2155021935.

It is a super-3 number, since 3×53912055123 (a number of 30 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (5391205511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2229328 + ... + 2231744.

It is an arithmetic number, because the mean of its divisors is an integer number (70508880).

Almost surely, 25391205512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5391205512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9025136640).

5391205512 is an abundant number, since it is smaller than the sum of its proper divisors (12659067768).

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

5391205512 is a wasteful number, since it uses less digits than its factorization.

5391205512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532 (or 2528 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 33.

The square root of 5391205512 is about 73424.8289885649. The cubic root of 5391205512 is about 1753.4577091656.

The spelling of 5391205512 in words is "five billion, three hundred ninety-one million, two hundred five thousand, five hundred twelve".