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389494110720 = 29351113227281
BaseRepresentation
bin1011010101011111010…
…10000111101000000000
31101020100111212220020110
411222233222013220000
522340140443020340
6454533042311320
740066012213131
oct5525752075000
91336314786213
10389494110720
111402022a9280
12635a0958540
132a962bb6300
1414bccb93c88
15a1e940c680
hex5aafa87a00

389494110720 has 480 divisors, whose sum is σ = 1470941550144. Its totient is φ = 87156326400.

The previous prime is 389494110713. The next prime is 389494110727. The reversal of 389494110720 is 27011494983.

It is an interprime number because it is at equal distance from previous prime (389494110713) and next prime (389494110727).

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-3 number, since 3×3894941107203 (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 389494110720.

It is not an unprimeable number, because it can be changed into a prime (389494110727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14263480 + ... + 14290760.

Almost surely, 2389494110720 is an apocalyptic number.

389494110720 is a gapful number since it is divisible by the number (30) 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 389494110720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735470775072).

389494110720 is an abundant number, since it is smaller than the sum of its proper divisors (1081447439424).

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

389494110720 is a wasteful number, since it uses less digits than its factorization.

389494110720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27344 (or 27315 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 389494110720 in words is "three hundred eighty-nine billion, four hundred ninety-four million, one hundred ten thousand, seven hundred twenty".