Search a number
-
+
387141261 = 3139926699
BaseRepresentation
bin10111000100110…
…100111010001101
3222222110210222020
4113010310322031
51243102010021
6102225440353
712410434503
oct2704647215
9888423866
10387141261
11189592a61
12a97a00b9
136228b790
14395b8673
1523ec37c6
hex17134e8d

387141261 has 8 divisors (see below), whose sum is σ = 555895200. Its totient is φ = 238240752.

The previous prime is 387141257. The next prime is 387141263. The reversal of 387141261 is 162141783.

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

It is not a de Polignac number, because 387141261 - 22 = 387141257 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387141263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4963311 + ... + 4963388.

It is an arithmetic number, because the mean of its divisors is an integer number (69486900).

Almost surely, 2387141261 is an apocalyptic number.

It is an amenable number.

387141261 is a deficient number, since it is larger than the sum of its proper divisors (168753939).

387141261 is a wasteful number, since it uses less digits than its factorization.

387141261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9926715.

The product of its digits is 8064, while the sum is 33.

The square root of 387141261 is about 19675.9055954230. The cubic root of 387141261 is about 728.8248189921.

The spelling of 387141261 in words is "three hundred eighty-seven million, one hundred forty-one thousand, two hundred sixty-one".

Divisors: 1 3 13 39 9926699 29780097 129047087 387141261