Search a number
-
+
3740423281 = 7287372
BaseRepresentation
bin1101111011110010…
…0101010001110001
3100122200021012010121
43132330211101301
530130022021111
61415054130241
7161456034100
oct33674452161
910580235117
103740423281
11164a40a411
128847b0981
13477c0801a
14276aa4037
1516d59d871
hexdef25471

3740423281 has 9 divisors (see below), whose sum is σ = 4351602699. Its totient is φ = 3205710144.

The previous prime is 3740423273. The next prime is 3740423299. The reversal of 3740423281 is 1823240473.

The square root of 3740423281 is 61159.

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

It can be written as a sum of positive squares in only one way, i.e., 1415640625 + 2324782656 = 37625^2 + 48216^2 .

It is not a de Polignac number, because 3740423281 - 23 = 3740423273 is a prime.

It is a super-2 number, since 2×37404232812 = 27981532642093609922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3740423251) 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, 423745 + ... + 432481.

It is an arithmetic number, because the mean of its divisors is an integer number (483511411).

Almost surely, 23740423281 is an apocalyptic number.

3740423281 is the 61159-th square number.

3740423281 is the 30580-th centered octagonal number.

It is an amenable number.

3740423281 is a deficient number, since it is larger than the sum of its proper divisors (611179418).

3740423281 is an frugal number, since it uses more digits than its factorization.

3740423281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17488 (or 8744 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The cubic root of 3740423281 is about 1552.2925881006.

The spelling of 3740423281 in words is "three billion, seven hundred forty million, four hundred twenty-three thousand, two hundred eighty-one".

Divisors: 1 7 49 8737 61159 428113 76335169 534346183 3740423281