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1378048 = 287769
BaseRepresentation
bin101010000011100000000
32121000022211
411100130000
5323044143
645311504
714466430
oct5203400
92530284
101378048
11861391
12565594
13393319
1427c2c0
151c349d
hex150700

1378048 has 36 divisors (see below), whose sum is σ = 3147760. Its totient is φ = 589824.

The previous prime is 1378033. The next prime is 1378057. The reversal of 1378048 is 8408731.

It is a happy number.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 1408 + ... + 2176.

21378048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1378048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1573880).

1378048 is an abundant number, since it is smaller than the sum of its proper divisors (1769712).

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

1378048 is an frugal number, since it uses more digits than its factorization.

1378048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 778 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1378048 is about 1173.9028920656. The cubic root of 1378048 is about 111.2811098453.

The spelling of 1378048 in words is "one million, three hundred seventy-eight thousand, forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 769 896 1538 1792 3076 5383 6152 10766 12304 21532 24608 43064 49216 86128 98432 172256 196864 344512 689024 1378048