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19244185037 = 711158092
BaseRepresentation
bin10001111011000010…
…101111010111001101
31211200011022220000222
4101323002233113031
5303403002410122
612501325401125
71250613605510
oct217302572715
954604286028
1019244185037
118185928060
123890a091a5
131a78c2544c
14d07b7cd77
15779720b42
hex47b0af5cd

19244185037 has 12 divisors (see below), whose sum is σ = 23994267936. Its totient is φ = 14994520320.

The previous prime is 19244185007. The next prime is 19244185049. The reversal of 19244185037 is 73058144291.

It is not a de Polignac number, because 19244185037 - 28 = 19244184781 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 (19244185007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1209389 + ... + 1225197.

It is an arithmetic number, because the mean of its divisors is an integer number (1999522328).

Almost surely, 219244185037 is an apocalyptic number.

It is an amenable number.

19244185037 is a deficient number, since it is larger than the sum of its proper divisors (4750082899).

19244185037 is an frugal number, since it uses more digits than its factorization.

19244185037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31636 (or 15827 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 19244185037 in words is "nineteen billion, two hundred forty-four million, one hundred eighty-five thousand, thirty-seven".

Divisors: 1 7 11 77 15809 110663 173899 1217293 249924481 1749471367 2749169291 19244185037