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3381497280 = 26345718637
BaseRepresentation
bin1100100110001101…
…1000110111000000
322201122212212020000
43021203120313000
523411130403110
61315313120000
7146540152440
oct31143306700
98648785200
103381497280
111485848a57
127a4559000
1341b748085
14241152120
1514bd001c0
hexc98d8dc0

3381497280 has 280 divisors, whose sum is σ = 13747687008. Its totient is φ = 772872192.

The previous prime is 3381497221. The next prime is 3381497291. The reversal of 3381497280 is 827941833.

3381497280 is a `hidden beast` number, since 3 + 3 + 81 + 497 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (280).

It is a super-2 number, since 2×33814972802 = 22869047709294796800, which 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 an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 172122 + ... + 190758.

Almost surely, 23381497280 is an apocalyptic number.

3381497280 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 3381497280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6873843504).

3381497280 is an abundant number, since it is smaller than the sum of its proper divisors (10366189728).

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

3381497280 is a wasteful number, since it uses less digits than its factorization.

3381497280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18673 (or 18654 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 3381497280 is about 58150.6429887065. The cubic root of 3381497280 is about 1500.9619429786.

The spelling of 3381497280 in words is "three billion, three hundred eighty-one million, four hundred ninety-seven thousand, two hundred eighty".