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249030492480 = 263257117971409
BaseRepresentation
bin1110011111101101011…
…1111100000101000000
3212210210100210202211100
43213323113330011000
513040003301224410
6310223015414400
723664131155140
oct3477327740500
9783710722740
10249030492480
1196682247970
124031b984400
131a639269bc3
14c0a5b60920
156727b5c8c0
hex39fb5fc140

249030492480 has 672 divisors, whose sum is σ = 1070019175680. Its totient is φ = 51644989440.

The previous prime is 249030492391. The next prime is 249030492493. The reversal of 249030492480 is 84294030942.

It is a happy number.

249030492480 is a `hidden beast` number, since 2 + 4 + 90 + 30 + 492 + 48 + 0 = 666.

249030492480 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (672).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 176742016 + ... + 176743424.

It is an arithmetic number, because the mean of its divisors is an integer number (1592290440).

Almost surely, 2249030492480 is an apocalyptic number.

249030492480 is a gapful number since it is divisible by the number (20) 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 249030492480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535009587840).

249030492480 is an abundant number, since it is smaller than the sum of its proper divisors (820988683200).

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

249030492480 is a wasteful number, since it uses less digits than its factorization.

249030492480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 249030492480 in words is "two hundred forty-nine billion, thirty million, four hundred ninety-two thousand, four hundred eighty".