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161541341 = 13312511597
BaseRepresentation
bin10011010000011…
…10110011011101
3102020222011001122
421220032303131
5312323310331
624010220325
74001036003
oct1150166335
9366864048
10161541341
1183205445
12461246a5
13276101c0
1417650a73
15e2ae17b
hex9a0ecdd

161541341 has 16 divisors (see below), whose sum is σ = 180407808. Its totient is φ = 143640000.

The previous prime is 161541337. The next prime is 161541343. The reversal of 161541341 is 143145161.

It is a cyclic number.

It is not a de Polignac number, because 161541341 - 22 = 161541337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 161541341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161541343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100355 + ... + 101951.

It is an arithmetic number, because the mean of its divisors is an integer number (11275488).

Almost surely, 2161541341 is an apocalyptic number.

It is an amenable number.

161541341 is a deficient number, since it is larger than the sum of its proper divisors (18866467).

161541341 is a wasteful number, since it uses less digits than its factorization.

161541341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892.

The product of its digits is 1440, while the sum is 26.

The square root of 161541341 is about 12709.8914629512. The cubic root of 161541341 is about 544.6212232168.

The spelling of 161541341 in words is "one hundred sixty-one million, five hundred forty-one thousand, three hundred forty-one".

Divisors: 1 13 31 251 403 1597 3263 7781 20761 49507 101153 400847 643591 5211011 12426257 161541341