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1377493 = 131723271
BaseRepresentation
bin101010000010011010101
32120222120021
411100103111
5323034433
645305141
714465005
oct5202325
92528507
101377493
11860a27
125651b1
13392cb0
1427c005
151c322d
hex1504d5

1377493 has 16 divisors (see below), whose sum is σ = 1645056. Its totient is φ = 1140480.

The previous prime is 1377491. The next prime is 1377499. The reversal of 1377493 is 3947731.

It is a cyclic number.

It is not a de Polignac number, because 1377493 - 21 = 1377491 is a prime.

Its product of digits (15876) is a multiple of the sum of its prime divisors (324).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4948 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (102816).

21377493 is an apocalyptic number.

1377493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1377493 is a deficient number, since it is larger than the sum of its proper divisors (267563).

1377493 is a wasteful number, since it uses less digits than its factorization.

1377493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324.

The product of its digits is 15876, while the sum is 34.

The square root of 1377493 is about 1173.6664773265. Note that the first 3 decimals coincide. The cubic root of 1377493 is about 111.2661685880.

The spelling of 1377493 in words is "one million, three hundred seventy-seven thousand, four hundred ninety-three".

Divisors: 1 13 17 23 221 271 299 391 3523 4607 5083 6233 59891 81029 105961 1377493