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3491904001 = 31481110921
BaseRepresentation
bin1101000000100010…
…0011101000000001
3100000100122002202211
43100020203220001
524122411412001
61334255342121
7152350460065
oct32010435001
910010562684
103491904001
1115320a8183
12815521941
134385935b1
14251a91aa5
1515685d351
hexd0223a01

3491904001 has 4 divisors (see below), whose sum is σ = 3492046404. Its totient is φ = 3491761600.

The previous prime is 3491903951. The next prime is 3491904041. The reversal of 3491904001 is 1004091943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1004091943 = 5318945131.

It can be written as a sum of positive squares in 2 ways, for example, as 55130625 + 3436773376 = 7425^2 + 58624^2 .

It is a cyclic number.

It is not a de Polignac number, because 3491904001 - 213 = 3491895809 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3491904041) 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, 23980 + ... + 86941.

It is an arithmetic number, because the mean of its divisors is an integer number (873011601).

Almost surely, 23491904001 is an apocalyptic number.

It is an amenable number.

3491904001 is a deficient number, since it is larger than the sum of its proper divisors (142403).

3491904001 is a wasteful number, since it uses less digits than its factorization.

3491904001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142402.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 3491904001 is about 59092.3345367231. The cubic root of 3491904001 is about 1517.1229049245.

Adding to 3491904001 its reverse (1004091943), we get a palindrome (4495995944).

The spelling of 3491904001 in words is "three billion, four hundred ninety-one million, nine hundred four thousand, one".

Divisors: 1 31481 110921 3491904001