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1369472 = 2713823
BaseRepresentation
bin101001110010110000000
32120120120012
411032112000
5322310342
645204052
714432426
oct5162600
92516505
101369472
118559a5
12560628
1338c450
14279116
151c0b82
hex14e580

1369472 has 32 divisors (see below), whose sum is σ = 2941680. Its totient is φ = 631296.

The previous prime is 1369457. The next prime is 1369483. The reversal of 1369472 is 2749631.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1253 + ... + 2075.

21369472 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 1369472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470840).

1369472 is an abundant number, since it is smaller than the sum of its proper divisors (1572208).

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

1369472 is an equidigital number, since it uses as much as digits as its factorization.

1369472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 838 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 1369472 is about 1170.2444189143. The cubic root of 1369472 is about 111.0497842314.

The spelling of 1369472 in words is "one million, three hundred sixty-nine thousand, four hundred seventy-two".

Divisors: 1 2 4 8 13 16 26 32 52 64 104 128 208 416 823 832 1646 1664 3292 6584 10699 13168 21398 26336 42796 52672 85592 105344 171184 342368 684736 1369472