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1474477749 = 3447387307
BaseRepresentation
bin101011111100010…
…1011111010110101
310210202111020020000
41113320223322311
511004431241444
6402151101513
751352565643
oct12770537265
93722436200
101474477749
11697338a58
12351971899
131a6627454
14ddb7c193
15896a7469
hex57e2beb5

1474477749 has 20 divisors (see below), whose sum is σ = 2249484864. Its totient is φ = 962068104.

The previous prime is 1474477723. The next prime is 1474477751. The reversal of 1474477749 is 9477744741.

It is not a de Polignac number, because 1474477749 - 27 = 1474477621 is a prime.

It is a super-2 number, since 2×14744777492 = 4348169264592214002, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1474477695 and 1474477704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1474477759) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 189847 + ... + 197460.

Almost surely, 21474477749 is an apocalyptic number.

It is an amenable number.

1474477749 is a deficient number, since it is larger than the sum of its proper divisors (775007115).

1474477749 is an equidigital number, since it uses as much as digits as its factorization.

1474477749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387366 (or 387357 counting only the distinct ones).

The product of its digits is 5531904, while the sum is 54.

The square root of 1474477749 is about 38398.9290085023. The cubic root of 1474477749 is about 1138.1846939913.

The spelling of 1474477749 in words is "one billion, four hundred seventy-four million, four hundred seventy-seven thousand, seven hundred forty-nine".

Divisors: 1 3 9 27 47 81 141 423 1269 3807 387307 1161921 3485763 10457289 18203429 31371867 54610287 163830861 491492583 1474477749