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1204380912 = 243717279157
BaseRepresentation
bin100011111001001…
…0110010011110000
310002221020220000110
41013302112103300
54431310142122
6315302021320
741563032420
oct10762262360
93087226013
101204380912
11568929229
12297417840
13162699537
14b5d50480
1570b0390c
hex47c964f0

1204380912 has 240 divisors, whose sum is σ = 3849436160. Its totient is φ = 317730816.

The previous prime is 1204380883. The next prime is 1204380917. The reversal of 1204380912 is 2190834021.

It is a self number, because there is not a number n which added to its sum of digits gives 1204380912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204380917) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7671138 + ... + 7671294.

Almost surely, 21204380912 is an apocalyptic number.

1204380912 is a gapful number since it is divisible by the number (12) 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 1204380912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1924718080).

1204380912 is an abundant number, since it is smaller than the sum of its proper divisors (2645055248).

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

1204380912 is a wasteful number, since it uses less digits than its factorization.

1204380912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1204380912 is about 34704.1915624035. The cubic root of 1204380912 is about 1063.9501691476.

The spelling of 1204380912 in words is "one billion, two hundred four million, three hundred eighty thousand, nine hundred twelve".