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6980329440 = 2533571912149
BaseRepresentation
bin1101000000000111…
…10101111111100000
3200000110201110212000
412200003311333200
5103243431020230
63112352404000
7334656551460
oct64003657740
920013643760
106980329440
112a62239907
121429846600
13873209766
144a30b9ba0
152acc30b60
hex1a00f5fe0

6980329440 has 384 divisors, whose sum is σ = 29393280000. Its totient is φ = 1511405568.

The previous prime is 6980329393. The next prime is 6980329469. The reversal of 6980329440 is 449230896.

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 63 ways as a sum of consecutive naturals, for example, 568486 + ... + 580634.

It is an arithmetic number, because the mean of its divisors is an integer number (76545000).

Almost surely, 26980329440 is an apocalyptic number.

6980329440 is a gapful number since it is divisible by the number (60) 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 6980329440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14696640000).

6980329440 is an abundant number, since it is smaller than the sum of its proper divisors (22412950560).

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

6980329440 is a wasteful number, since it uses less digits than its factorization.

6980329440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12199 (or 12185 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 6980329440 is about 83548.3658727087. The cubic root of 6980329440 is about 1911.1376718661.

The spelling of 6980329440 in words is "six billion, nine hundred eighty million, three hundred twenty-nine thousand, four hundred forty".