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1923263997 = 31275047937
BaseRepresentation
bin111001010100010…
…1010110111111101
311222000221221012220
41302220222313331
512414323421442
6514502115553
765442321444
oct16250526775
94860857186
101923263997
118a76a5786
1245811bbb9
132485ba845
14143601d5b
15b3ca5eec
hex72a2adfd

1923263997 has 8 divisors (see below), whose sum is σ = 2584544256. Its totient is φ = 1272079872.

The previous prime is 1923263989. The next prime is 1923264001. The reversal of 1923263997 is 7993623291.

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

It is not a de Polignac number, because 1923263997 - 23 = 1923263989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1923263977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2523588 + ... + 2524349.

It is an arithmetic number, because the mean of its divisors is an integer number (323068032).

Almost surely, 21923263997 is an apocalyptic number.

It is an amenable number.

1923263997 is a deficient number, since it is larger than the sum of its proper divisors (661280259).

1923263997 is a wasteful number, since it uses less digits than its factorization.

1923263997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048067.

The product of its digits is 1102248, while the sum is 51.

The square root of 1923263997 is about 43855.0338843787. The cubic root of 1923263997 is about 1243.5969090394.

The spelling of 1923263997 in words is "one billion, nine hundred twenty-three million, two hundred sixty-three thousand, nine hundred ninety-seven".

Divisors: 1 3 127 381 5047937 15143811 641087999 1923263997