Search a number
-
+
3718648141 = 13286049857
BaseRepresentation
bin1101110110100110…
…0001000101001101
3100121011021220020221
43131221201011031
530103433220031
61412555311341
7161102662525
oct33551410515
910534256227
103718648141
11163909742a
1287944b551
13473552920
14273c36685
1516b6eba11
hexdda6114d

3718648141 has 4 divisors (see below), whose sum is σ = 4004698012. Its totient is φ = 3432598272.

The previous prime is 3718648139. The next prime is 3718648177. The reversal of 3718648141 is 1418468173.

3718648141 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1418468173 = 13910204807.

It can be written as a sum of positive squares in 2 ways, for example, as 630512100 + 3088136041 = 25110^2 + 55571^2 .

It is a cyclic number.

It is not a de Polignac number, because 3718648141 - 21 = 3718648139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3718648541) 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, 143024916 + ... + 143024941.

It is an arithmetic number, because the mean of its divisors is an integer number (1001174503).

Almost surely, 23718648141 is an apocalyptic number.

It is an amenable number.

3718648141 is a deficient number, since it is larger than the sum of its proper divisors (286049871).

3718648141 is a wasteful number, since it uses less digits than its factorization.

3718648141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286049870.

The product of its digits is 129024, while the sum is 43.

The square root of 3718648141 is about 60980.7194201577. The cubic root of 3718648141 is about 1549.2744632126.

The spelling of 3718648141 in words is "three billion, seven hundred eighteen million, six hundred forty-eight thousand, one hundred forty-one".

Divisors: 1 13 286049857 3718648141