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19282938373 = 70692727817
BaseRepresentation
bin10001111101010110…
…100100101000000101
31211202212020202121201
4101331112210220011
5303442413011443
612505232142501
71251564162136
oct217526445005
954685222551
1019282938373
1181a5797006
1238a1997a31
131a83c7370a
14d0cd89c8d
1577cd2834d
hex47d5a4a05

19282938373 has 4 divisors (see below), whose sum is σ = 19285673260. Its totient is φ = 19280203488.

The previous prime is 19282938307. The next prime is 19282938379. The reversal of 19282938373 is 37383928291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37383928291 = 193911927901.

It can be written as a sum of positive squares in 2 ways, for example, as 11447502049 + 7835436324 = 106993^2 + 88518^2 .

It is a cyclic number.

It is not a de Polignac number, because 19282938373 - 225 = 19249383941 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 (19282938379) 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, 1356840 + ... + 1370977.

It is an arithmetic number, because the mean of its divisors is an integer number (4821418315).

Almost surely, 219282938373 is an apocalyptic number.

It is an amenable number.

19282938373 is a deficient number, since it is larger than the sum of its proper divisors (2734887).

19282938373 is an equidigital number, since it uses as much as digits as its factorization.

19282938373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734886.

The product of its digits is 3919104, while the sum is 55.

The spelling of 19282938373 in words is "nineteen billion, two hundred eighty-two million, nine hundred thirty-eight thousand, three hundred seventy-three".

Divisors: 1 7069 2727817 19282938373