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8380764 = 2232724751
BaseRepresentation
bin11111111110000101011100
3120202210020200
4133332011130
54121141024
6455343500
7131143500
oct37760534
916683220
108380764
114804657
122981b90
131975842
141182300
15b082c9
hex7fe15c

8380764 has 54 divisors (see below), whose sum is σ = 24648624. Its totient is φ = 2394000.

The previous prime is 8380751. The next prime is 8380781. The reversal of 8380764 is 4670838.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 612 + ... + 4139.

It is an arithmetic number, because the mean of its divisors is an integer number (456456).

Almost surely, 28380764 is an apocalyptic number.

8380764 is a gapful number since it is divisible by the number (84) 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 8380764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12324312).

8380764 is an abundant number, since it is smaller than the sum of its proper divisors (16267860).

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

8380764 is a wasteful number, since it uses less digits than its factorization.

8380764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4775 (or 4763 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 8380764 is about 2894.9549219288. The cubic root of 8380764 is about 203.1239829219.

The spelling of 8380764 in words is "eight million, three hundred eighty thousand, seven hundred sixty-four".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 126 147 196 252 294 441 588 882 1764 4751 9502 14253 19004 28506 33257 42759 57012 66514 85518 99771 133028 171036 199542 232799 299313 399084 465598 598626 698397 931196 1197252 1396794 2095191 2793588 4190382 8380764