Search a number
-
+
1381610001 = 31074304081
BaseRepresentation
bin101001001011001…
…1011001000010001
310120021202001121210
41102112123020101
510312143010001
6345032410333
746144330332
oct12226331021
93507661553
101381610001
11649979052
123268469a9
13190310115
14d16c6289
1581460dd6
hex5259b211

1381610001 has 8 divisors (see below), whose sum is σ = 1859363424. Its totient is φ = 912464960.

The previous prime is 1381609997. The next prime is 1381610017. The reversal of 1381610001 is 1000161831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1381610001 - 22 = 1381609997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1381610001.

It is not an unprimeable number, because it can be changed into a prime (1381610051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2151720 + ... + 2152361.

It is an arithmetic number, because the mean of its divisors is an integer number (232420428).

Almost surely, 21381610001 is an apocalyptic number.

It is an amenable number.

1381610001 is a deficient number, since it is larger than the sum of its proper divisors (477753423).

1381610001 is a wasteful number, since it uses less digits than its factorization.

1381610001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304191.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 1381610001 is about 37170.0148103280. The cubic root of 1381610001 is about 1113.7690776333.

Adding to 1381610001 its reverse (1000161831), we get a palindrome (2381771832).

The spelling of 1381610001 in words is "one billion, three hundred eighty-one million, six hundred ten thousand, one".

Divisors: 1 3 107 321 4304081 12912243 460536667 1381610001