Search a number
-
+
17914991073 = 3719161927733
BaseRepresentation
bin10000101011110100…
…010001000111100001
31201020112012211200220
4100223310101013201
5243142214203243
612121404233253
71202643624450
oct205364210741
951215184626
1017914991073
1176635aaa51
12357b83b829
1318c6738345
14c1d41cb97
156ecbb5783
hex42bd111e1

17914991073 has 32 divisors (see below), whose sum is σ = 28754611200. Its totient is φ = 9692001216.

The previous prime is 17914991033. The next prime is 17914991117. The reversal of 17914991073 is 37019941971.

It is not a de Polignac number, because 17914991073 - 217 = 17914860001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17914991033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 632115 + ... + 659847.

It is an arithmetic number, because the mean of its divisors is an integer number (898581600).

Almost surely, 217914991073 is an apocalyptic number.

It is an amenable number.

17914991073 is a deficient number, since it is larger than the sum of its proper divisors (10839620127).

17914991073 is a wasteful number, since it uses less digits than its factorization.

17914991073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29381.

The product of its (nonzero) digits is 428652, while the sum is 51.

The spelling of 17914991073 in words is "seventeen billion, nine hundred fourteen million, nine hundred ninety-one thousand, seventy-three".

Divisors: 1 3 7 19 21 57 133 399 1619 4857 11333 27733 30761 33999 83199 92283 194131 215327 526927 582393 645981 1580781 3688489 11065467 44899727 134699181 314298089 853094813 942894267 2559284439 5971663691 17914991073