Search a number
-
+
18793624076168 = 23192806692
BaseRepresentation
bin1000100010111101110110…
…10010010111111110001000
32110112122121222022220110012
410101132323102113332020
54430403320230414133
6103545401031211052
73646536344612414
oct421367322277610
973478558286405
1018793624076168
115a9637092a007
1221363b6816a88
13a64300a9b546
1448d88b029d44
15228cea557b48
hex1117bb497f88

18793624076168 has 36 divisors (see below), whose sum is σ = 37190752440165. Its totient is φ = 8902132628256.

The previous prime is 18793624076159. The next prime is 18793624076197. The reversal of 18793624076168 is 86167042639781.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 16347158958244 + 2446465117924 = 4043162^2 + 1564118^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3065422.

It is a super-2 number, since 2×187936240761682 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18793624076098 and 18793624076107.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 232931738 + ... + 233012406.

Almost surely, 218793624076168 is an apocalyptic number.

It is an amenable number.

18793624076168 is a deficient number, since it is larger than the sum of its proper divisors (18397128363997).

18793624076168 is an frugal number, since it uses more digits than its factorization.

18793624076168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161382 (or 80690 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 68.

The spelling of 18793624076168 in words is "eighteen trillion, seven hundred ninety-three billion, six hundred twenty-four million, seventy-six thousand, one hundred sixty-eight".

Divisors: 1 2 4 8 19 38 76 152 361 722 1444 2888 80669 161338 322676 645352 1532711 3065422 6130844 12261688 29121509 58243018 116486036 232972072 6507487561 13014975122 26029950244 52059900488 123642263659 247284527318 494569054636 989138109272 2349203009521 4698406019042 9396812038084 18793624076168