Search a number
-
+
3913422437 = 19492007913
BaseRepresentation
bin1110100101000010…
…0001011001100101
3101002201210110100202
43221100201121211
531003314004222
61444154120245
7165656353601
oct35120413145
911081713322
103913422437
111729030221
12912720085
134a49ca4a2
14291a58501
1517d872892
hexe9421665

3913422437 has 4 divisors (see below), whose sum is σ = 3915432300. Its totient is φ = 3911412576.

The previous prime is 3913422433. The next prime is 3913422439. The reversal of 3913422437 is 7342243193.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2945341441 + 968080996 = 54271^2 + 31114^2 .

It is a cyclic number.

It is not a de Polignac number, because 3913422437 - 22 = 3913422433 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 3913422437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3913422433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1002008 + ... + 1005905.

It is an arithmetic number, because the mean of its divisors is an integer number (978858075).

Almost surely, 23913422437 is an apocalyptic number.

It is an amenable number.

3913422437 is a deficient number, since it is larger than the sum of its proper divisors (2009863).

3913422437 is a wasteful number, since it uses less digits than its factorization.

3913422437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009862.

The product of its digits is 108864, while the sum is 38.

The square root of 3913422437 is about 62557.3531809011. The cubic root of 3913422437 is about 1575.8646381386.

The spelling of 3913422437 in words is "three billion, nine hundred thirteen million, four hundred twenty-two thousand, four hundred thirty-seven".

Divisors: 1 1949 2007913 3913422437