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1049539680 = 25345723503
BaseRepresentation
bin111110100011101…
…011010001100000
32201010220010210000
4332203223101200
54122140232210
6252051140000
735002640310
oct7643532140
92633803700
101049539680
1149948a772
122535a4600
13139593bc7
149d565440
1562219ac0
hex3e8eb460

1049539680 has 480 divisors, whose sum is σ = 4425974784. Its totient is φ = 229008384.

The previous prime is 1049539663. The next prime is 1049539681. The reversal of 1049539680 is 869359401.

It is a happy number.

1049539680 is a `hidden beast` number, since 10 + 49 + 539 + 68 + 0 = 666.

1049539680 is digitally balanced in base 2, 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 (480).

It is a super-2 number, since 2×10495396802 = 2203067079789004800, 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 not an unprimeable number, because it can be changed into a prime (1049539681) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2086309 + ... + 2086811.

Almost surely, 21049539680 is an apocalyptic number.

1049539680 is a gapful number since it is divisible by the number (10) 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 1049539680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2212987392).

1049539680 is an abundant number, since it is smaller than the sum of its proper divisors (3376435104).

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

1049539680 is a wasteful number, since it uses less digits than its factorization.

1049539680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1049539680 is about 32396.5998215862. The cubic root of 1049539680 is about 1016.2478057169.

The spelling of 1049539680 in words is "one billion, forty-nine million, five hundred thirty-nine thousand, six hundred eighty".