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15234130989 = 3271121998443
BaseRepresentation
bin11100011000000011…
…00110010000101101
31110022200201001000200
432030001212100231
5222144414142424
610555400144113
71046341656030
oct161401462055
943280631020
1015234130989
1165082a7100
122b51a68039
13158a1c36bc
14a4736d017
155e26618c9
hex38c06642d

15234130989 has 36 divisors (see below), whose sum is σ = 27642477408. Its totient is φ = 7913830320.

The previous prime is 15234130981. The next prime is 15234130993. The reversal of 15234130989 is 98903143251.

It is a happy number.

15234130989 is a `hidden beast` number, since 1 + 523 + 4 + 1 + 30 + 98 + 9 = 666.

It is not a de Polignac number, because 15234130989 - 23 = 15234130981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15234130981) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 991599 + ... + 1006844.

Almost surely, 215234130989 is an apocalyptic number.

It is an amenable number.

15234130989 is a deficient number, since it is larger than the sum of its proper divisors (12408346419).

15234130989 is a wasteful number, since it uses less digits than its factorization.

15234130989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998478 (or 1998464 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 15234130989 in words is "fifteen billion, two hundred thirty-four million, one hundred thirty thousand, nine hundred eighty-nine".

Divisors: 1 3 7 9 11 21 33 63 77 99 121 231 363 693 847 1089 2541 7623 1998443 5995329 13989101 17985987 21982873 41967303 65948619 125901909 153880111 197845857 241811603 461640333 725434809 1384920999 1692681221 2176304427 5078043663 15234130989