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19341748497 = 319339328921
BaseRepresentation
bin10010000000110110…
…111010100100010001
31211220221220121221110
4102000312322210101
5304102441422442
612515132443533
71253210102211
oct220066724421
954827817843
1019341748497
118225a04a15
1238b96195a9
131a931c4bc6
14d16ad8241
1578309369c
hex480dba911

19341748497 has 8 divisors (see below), whose sum is σ = 27146313760. Its totient is φ = 12215841120.

The previous prime is 19341748463. The next prime is 19341748537. The reversal of 19341748497 is 79484714391.

It is a happy number.

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

It is not a de Polignac number, because 19341748497 - 210 = 19341747473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 339328921 = 19341748497 / (1 + 9 + 3 + 4 + 1 + 7 + 4 + 8 + 4 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19341748417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169664404 + ... + 169664517.

It is an arithmetic number, because the mean of its divisors is an integer number (3393289220).

Almost surely, 219341748497 is an apocalyptic number.

It is an amenable number.

19341748497 is a deficient number, since it is larger than the sum of its proper divisors (7804565263).

19341748497 is a wasteful number, since it uses less digits than its factorization.

19341748497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339328943.

The product of its digits is 6096384, while the sum is 57.

The spelling of 19341748497 in words is "nineteen billion, three hundred forty-one million, seven hundred forty-eight thousand, four hundred ninety-seven".

Divisors: 1 3 19 57 339328921 1017986763 6447249499 19341748497