Search a number
-
+
18097105141731 = 371127122040591
BaseRepresentation
bin1000001110101100011111…
…00001011111111111100011
32101002001210101001221221110
410013112033201133333203
54333000332404013411
6102253410105154403
73545321064425160
oct407261741377743
971061711057843
1018097105141731
115847a37075500
12204340ba8ba03
13a1371b89b815
14467c94195067
15215b31dbc2a6
hex10758f85ffe3

18097105141731 has 24 divisors (see below), whose sum is σ = 30311404759552. Its totient is φ = 9401093578800.

The previous prime is 18097105141721. The next prime is 18097105141771. The reversal of 18097105141731 is 13714150179081.

It is not a de Polignac number, because 18097105141731 - 25 = 18097105141699 is a prime.

It is a super-2 number, since 2×180971051417312 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18097105141721) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3561017755 + ... + 3561022836.

Almost surely, 218097105141731 is an apocalyptic number.

18097105141731 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

18097105141731 is a deficient number, since it is larger than the sum of its proper divisors (12214299617821).

18097105141731 is a wasteful number, since it uses less digits than its factorization.

18097105141731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122040623 (or 7122040612 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 48.

The spelling of 18097105141731 in words is "eighteen trillion, ninety-seven billion, one hundred five million, one hundred forty-one thousand, seven hundred thirty-one".

Divisors: 1 3 7 11 21 33 77 121 231 363 847 2541 7122040591 21366121773 49854284137 78342446501 149562852411 235027339503 548397125507 861766911511 1645191376521 2585300734533 6032368380577 18097105141731