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161283265132 = 221131118242863
BaseRepresentation
bin1001011000110100111…
…0110101001001101100
3120102022002220202211011
42112031032311021230
510120302003441012
6202031552035004
714436515063653
oct2261516651154
9512262822734
10161283265132
1162444220260
1227311532a64
13122940956c2
147b4011a19a
1542de4741a7
hex258d3b526c

161283265132 has 24 divisors (see below), whose sum is σ = 317836818432. Its totient is φ = 70945717200.

The previous prime is 161283265021. The next prime is 161283265189. The reversal of 161283265132 is 231562382161.

161283265132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1612832651322 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59120068 + ... + 59122795.

It is an arithmetic number, because the mean of its divisors is an integer number (13243200768).

Almost surely, 2161283265132 is an apocalyptic number.

It is an amenable number.

161283265132 is a deficient number, since it is larger than the sum of its proper divisors (156553553300).

161283265132 is a wasteful number, since it uses less digits than its factorization.

161283265132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118242909 (or 118242907 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The spelling of 161283265132 in words is "one hundred sixty-one billion, two hundred eighty-three million, two hundred sixty-five thousand, one hundred thirty-two".

Divisors: 1 2 4 11 22 31 44 62 124 341 682 1364 118242863 236485726 472971452 1300671493 2601342986 3665528753 5202685972 7331057506 14662115012 40320816283 80641632566 161283265132