Search a number
-
+
1830511201 = 11159164039
BaseRepresentation
bin110110100011011…
…0110001001100001
311201120102121022011
41231012312021201
512222102324301
6501350112521
763235042231
oct15506661141
94646377264
101830511201
1185a304182
1243104b741
1323231392c
14135179cc1
15aaa83a51
hex6d1b6261

1830511201 has 4 divisors (see below), whose sum is σ = 1830686400. Its totient is φ = 1830336004.

The previous prime is 1830511187. The next prime is 1830511211. The reversal of 1830511201 is 1021150381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1830511201 - 25 = 1830511169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1830511211) 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, 70861 + ... + 93178.

It is an arithmetic number, because the mean of its divisors is an integer number (457671600).

Almost surely, 21830511201 is an apocalyptic number.

It is an amenable number.

1830511201 is a deficient number, since it is larger than the sum of its proper divisors (175199).

1830511201 is a wasteful number, since it uses less digits than its factorization.

1830511201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175198.

The product of its (nonzero) digits is 240, while the sum is 22.

The square root of 1830511201 is about 42784.4738310523. The cubic root of 1830511201 is about 1223.2750846667.

Adding to 1830511201 its reverse (1021150381), we get a palindrome (2851661582).

The spelling of 1830511201 in words is "one billion, eight hundred thirty million, five hundred eleven thousand, two hundred one".

Divisors: 1 11159 164039 1830511201