Search a number
-
+
1930260973 = 3162266483
BaseRepresentation
bin111001100001101…
…0111000111101101
311222112010102021011
41303003113013231
512423121322343
6515312105221
765555643004
oct16303270755
94875112234
101930260973
11900644703
1245a535211
13249b9a574
14144503c3b
15b46d929d
hex730d71ed

1930260973 has 4 divisors (see below), whose sum is σ = 1992527488. Its totient is φ = 1867994460.

The previous prime is 1930260949. The next prime is 1930260989. The reversal of 1930260973 is 3790620391.

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 a de Polignac number, because none of the positive numbers 2k-1930260973 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 (1930260473) 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, 31133211 + ... + 31133272.

It is an arithmetic number, because the mean of its divisors is an integer number (498131872).

Almost surely, 21930260973 is an apocalyptic number.

It is an amenable number.

1930260973 is a deficient number, since it is larger than the sum of its proper divisors (62266515).

1930260973 is an equidigital number, since it uses as much as digits as its factorization.

1930260973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62266514.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 1930260973 is about 43934.7353810171. The cubic root of 1930260973 is about 1245.1031829021.

The spelling of 1930260973 in words is "one billion, nine hundred thirty million, two hundred sixty thousand, nine hundred seventy-three".

Divisors: 1 31 62266483 1930260973