Search a number
-
+
3490280437 = 72409174157
BaseRepresentation
bin1101000000001001…
…0111001111110101
3100000020120121122211
43100002113033311
524122002433222
61334200453421
7152330615500
oct32002271765
910006517584
103490280437
111531199396
12814a7a271
134381455c7
1425178c137
1515663c277
hexd00973f5

3490280437 has 12 divisors (see below), whose sum is σ = 4070072460. Its totient is φ = 2984337216.

The previous prime is 3490280419. The next prime is 3490280441. The reversal of 3490280437 is 7340820943.

3490280437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2017716561 + 1472563876 = 44919^2 + 38374^2 .

It is not a de Polignac number, because 3490280437 - 227 = 3356062709 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3490280437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3490280407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67038 + ... + 107119.

It is an arithmetic number, because the mean of its divisors is an integer number (339172705).

Almost surely, 23490280437 is an apocalyptic number.

It is an amenable number.

3490280437 is a deficient number, since it is larger than the sum of its proper divisors (579792023).

3490280437 is a wasteful number, since it uses less digits than its factorization.

3490280437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174580 (or 174573 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 3490280437 is about 59078.5954216923. The cubic root of 3490280437 is about 1516.8877392406.

The spelling of 3490280437 in words is "three billion, four hundred ninety million, two hundred eighty thousand, four hundred thirty-seven".

Divisors: 1 7 49 409 2863 20041 174157 1219099 8533693 71230213 498611491 3490280437