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489265920000 = 211355411213
BaseRepresentation
bin1110001111010101000…
…01010111100000000000
31201202212210010221200000
413013222201113200000
531004004033420000
61012433214400000
750230315462434
oct7075241274000
91652783127600
10489265920000
11179550947300
127a9a6200000
13371a334b150
14199757b49c4
15cad85c0000
hex71ea857800

489265920000 has 2160 divisors, whose sum is σ = 2167634228760. Its totient is φ = 109486080000.

The previous prime is 489265919983. The next prime is 489265920001. The reversal of 489265920000 is 29562984.

It is a tau number, because it is divible by the number of its divisors (2160).

It is a super-2 number, since 2×4892659200002 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489265920001) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 37635839994 + ... + 37635840006.

Almost surely, 2489265920000 is an apocalyptic number.

489265920000 is a gapful number since it is divisible by the number (40) 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 489265920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1083817114380).

489265920000 is an abundant number, since it is smaller than the sum of its proper divisors (1678368308760).

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

489265920000 is an equidigital number, since it uses as much as digits as its factorization.

489265920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 489265920000 in words is "four hundred eighty-nine billion, two hundred sixty-five million, nine hundred twenty thousand".