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3005190720 = 2635575521
BaseRepresentation
bin1011001100011111…
…1001001001000000
321202102210111200000
42303013321021000
522123312100340
61214111400000
7134320461660
oct26307711100
97672714600
103005190720
1113023962a4
126ba523000
1338b7b107c
142071981a0
15128c6bd30
hexb31f9240

3005190720 has 336 divisors, whose sum is σ = 12253008768. Its totient is φ = 686776320.

The previous prime is 3005190709. The next prime is 3005190737. The reversal of 3005190720 is 270915003.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 541560 + ... + 547080.

It is an arithmetic number, because the mean of its divisors is an integer number (36467288).

Almost surely, 23005190720 is an apocalyptic number.

3005190720 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 3005190720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6126504384).

3005190720 is an abundant number, since it is smaller than the sum of its proper divisors (9247818048).

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

3005190720 is an equidigital number, since it uses as much as digits as its factorization.

3005190720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560 (or 5538 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 3005190720 is about 54819.6198454531. The cubic root of 3005190720 is about 1443.0809036550.

The spelling of 3005190720 in words is "three billion, five million, one hundred ninety thousand, seven hundred twenty".