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47430769 = 712972
BaseRepresentation
bin1011010011101…
…1110001110001
310022020201210011
42310323301301
544120241034
64412334521
71114104061
oct264736161
9108221704
1047430769
1124856491
1213a74441
139a98b59
1464293a1
15426d864
hex2d3bc71

47430769 has 9 divisors (see below), whose sum is σ = 48609291. Its totient is φ = 46280640.

The previous prime is 47430751. The next prime is 47430787. The reversal of 47430769 is 96703474.

The square root of 47430769 is 6887.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (47430751) and next prime (47430787).

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 26132544 = 4615^2 + 5112^2 .

It is not a de Polignac number, because 47430769 - 25 = 47430737 is a prime.

It is a super-2 number, since 2×474307692 = 4499355695862722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47430739) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 488929 + ... + 489025.

Almost surely, 247430769 is an apocalyptic number.

47430769 is the 6887-th square number.

47430769 is the 3444-th centered octagonal number.

It is an amenable number.

47430769 is a deficient number, since it is larger than the sum of its proper divisors (1178522).

47430769 is an frugal number, since it uses more digits than its factorization.

47430769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The cubic root of 47430769 is about 361.9817889153.

The spelling of 47430769 in words is "forty-seven million, four hundred thirty thousand, seven hundred sixty-nine".

Divisors: 1 71 97 5041 6887 9409 488977 668039 47430769