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161539028348 = 2266616062867
BaseRepresentation
bin1001011001110001111…
…0011111010101111100
3120102221221011212222212
42112130132133111330
510121312442401343
6202113205555552
714446042041215
oct2263436372574
9512857155885
10161539028348
116256562aa15
1227383115bb8
1312305075399
147b6609640c
154306b45c18
hex259c79f57c

161539028348 has 12 divisors (see below), whose sum is σ = 282735786312. Its totient is φ = 80757375120.

The previous prime is 161539028317. The next prime is 161539028377. The reversal of 161539028348 is 843820935161.

It is a happy number.

It is a super-3 number, since 3×1615390283483 (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161539028296 and 161539028305.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3004790 + ... + 3058077.

It is an arithmetic number, because the mean of its divisors is an integer number (23561315526).

Almost surely, 2161539028348 is an apocalyptic number.

It is an amenable number.

161539028348 is a deficient number, since it is larger than the sum of its proper divisors (121196757964).

161539028348 is a wasteful number, since it uses less digits than its factorization.

161539028348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6069532 (or 6069530 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 50.

The spelling of 161539028348 in words is "one hundred sixty-one billion, five hundred thirty-nine million, twenty-eight thousand, three hundred forty-eight".

Divisors: 1 2 4 6661 13322 26644 6062867 12125734 24251468 40384757087 80769514174 161539028348