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2493189764 = 221347945957
BaseRepresentation
bin1001010010011011…
…0000111010000100
320102202101011101122
42110212300322010
520101224033024
61051221413112
7115532522552
oct22446607204
96382334348
102493189764
11106a38240a
12596b6a198
133096b6720
1419919abd2
15e8d32d5e
hex949b0e84

2493189764 has 12 divisors (see below), whose sum is σ = 4698703884. Its totient is φ = 1150702944.

The previous prime is 2493189761. The next prime is 2493189793. The reversal of 2493189764 is 4679813942.

It can be written as a sum of positive squares in 2 ways, for example, as 1293121600 + 1200068164 = 35960^2 + 34642^2 .

It is not an unprimeable number, because it can be changed into a prime (2493189761) 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 3 ways as a sum of consecutive naturals, for example, 23972927 + ... + 23973030.

It is an arithmetic number, because the mean of its divisors is an integer number (391558657).

Almost surely, 22493189764 is an apocalyptic number.

It is an amenable number.

2493189764 is a deficient number, since it is larger than the sum of its proper divisors (2205514120).

2493189764 is a wasteful number, since it uses less digits than its factorization.

2493189764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47945974 (or 47945972 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 53.

The square root of 2493189764 is about 49931.8511974071. The cubic root of 2493189764 is about 1355.9752992487.

The spelling of 2493189764 in words is "two billion, four hundred ninety-three million, one hundred eighty-nine thousand, seven hundred sixty-four".

Divisors: 1 2 4 13 26 52 47945957 95891914 191783828 623297441 1246594882 2493189764