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1384898780 = 22569244939
BaseRepresentation
bin101001010001011…
…1110000011011100
310120111221010222102
41102202332003130
510314013230110
6345231104232
746214305526
oct12242760334
93514833872
101384898780
11650814a51
12327972078
13190bc2045
14d1d00a16
15818b05a5
hex528be0dc

1384898780 has 12 divisors (see below), whose sum is σ = 2908287480. Its totient is φ = 553959504.

The previous prime is 1384898759. The next prime is 1384898791. The reversal of 1384898780 is 878984831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34622450 + ... + 34622489.

It is an arithmetic number, because the mean of its divisors is an integer number (242357290).

Almost surely, 21384898780 is an apocalyptic number.

1384898780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384898780 is an abundant number, since it is smaller than the sum of its proper divisors (1523388700).

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

1384898780 is a wasteful number, since it uses less digits than its factorization.

1384898780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69244948 (or 69244946 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 56.

The square root of 1384898780 is about 37214.2281929909. The cubic root of 1384898780 is about 1114.6521145182.

The spelling of 1384898780 in words is "one billion, three hundred eighty-four million, eight hundred ninety-eight thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 69244939 138489878 276979756 346224695 692449390 1384898780