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15379980189 = 3717147129287
BaseRepresentation
bin11100101001011011…
…11101111110011101
31110200212010221111220
432110231331332131
5222444233331224
611022050203553
71053062450250
oct162455757635
943625127456
1015379980189
116582663832
122b928835b9
1315b149b1c2
14a5c897097
15600371279
hex394b7df9d

15379980189 has 32 divisors (see below), whose sum is σ = 24832475136. Its totient is φ = 8265680640.

The previous prime is 15379980137. The next prime is 15379980227. The reversal of 15379980189 is 98108997351.

It is not a de Polignac number, because 15379980189 - 27 = 15379980061 is a prime.

It is a super-2 number, since 2×153799801892 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15379981189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 510504 + ... + 539790.

It is an arithmetic number, because the mean of its divisors is an integer number (776014848).

Almost surely, 215379980189 is an apocalyptic number.

It is an amenable number.

15379980189 is a deficient number, since it is larger than the sum of its proper divisors (9452494947).

15379980189 is a wasteful number, since it uses less digits than its factorization.

15379980189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30785.

The product of its (nonzero) digits is 4898880, while the sum is 60.

The spelling of 15379980189 in words is "fifteen billion, three hundred seventy-nine million, nine hundred eighty thousand, one hundred eighty-nine".

Divisors: 1 3 7 17 21 51 119 357 1471 4413 10297 25007 29287 30891 75021 87861 175049 205009 497879 525147 615027 1493637 3485153 10455459 43081177 129243531 301568239 732380009 904704717 2197140027 5126660063 15379980189