Search a number
-
+
1949935201 = 4741487983
BaseRepresentation
bin111010000111001…
…1010011001100001
312000220010222020021
41310032122121201
512443140411301
6521253513441
766215114164
oct16416323141
95026128207
101949935201
119107621a5
12465042881
13250c98616
14146d85adb
15b62c38a1
hex7439a661

1949935201 has 4 divisors (see below), whose sum is σ = 1991423232. Its totient is φ = 1908447172.

The previous prime is 1949935199. The next prime is 1949935231. The reversal of 1949935201 is 1025399491.

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 1949935201 - 21 = 1949935199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949935231) 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, 20743945 + ... + 20744038.

It is an arithmetic number, because the mean of its divisors is an integer number (497855808).

Almost surely, 21949935201 is an apocalyptic number.

It is an amenable number.

1949935201 is a deficient number, since it is larger than the sum of its proper divisors (41488031).

1949935201 is an equidigital number, since it uses as much as digits as its factorization.

1949935201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41488030.

The product of its (nonzero) digits is 87480, while the sum is 43.

The square root of 1949935201 is about 44158.0706213485. The cubic root of 1949935201 is about 1249.3191387564.

The spelling of 1949935201 in words is "one billion, nine hundred forty-nine million, nine hundred thirty-five thousand, two hundred one".

Divisors: 1 47 41487983 1949935201