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1380484 = 227471049
BaseRepresentation
bin101010001000010000100
32121010200001
411101002010
5323133414
645331044
714506510
oct5210204
92533601
101380484
118631a6
12566a84
13394471
1427d140
151c4074
hex151084

1380484 has 24 divisors (see below), whose sum is σ = 2822400. Its totient is φ = 578496.

The previous prime is 1380469. The next prime is 1380499. The reversal of 1380484 is 4840831.

It is an interprime number because it is at equal distance from previous prime (1380469) and next prime (1380499).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 792 + ... + 1840.

It is an arithmetic number, because the mean of its divisors is an integer number (117600).

21380484 is an apocalyptic number.

1380484 is a gapful number since it is divisible by the number (14) 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 1380484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1411200).

1380484 is an abundant number, since it is smaller than the sum of its proper divisors (1441916).

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

1380484 is a wasteful number, since it uses less digits than its factorization.

1380484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 1380484 is about 1174.9399984680. The cubic root of 1380484 is about 111.3466424462.

The spelling of 1380484 in words is "one million, three hundred eighty thousand, four hundred eighty-four".

Divisors: 1 2 4 7 14 28 47 94 188 329 658 1049 1316 2098 4196 7343 14686 29372 49303 98606 197212 345121 690242 1380484