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161053110 = 2355191347
BaseRepresentation
bin10011001100101…
…11100110110110
3102020001100100000
421212113212312
5312212144420
623551532130
73663633411
oct1146274666
9366040300
10161053110
1182a01649
1245b2a046
132749bbca
1417564b78
15e214690
hex99979b6

161053110 has 96 divisors (see below), whose sum is σ = 437778432. Its totient is φ = 42599520.

The previous prime is 161053097. The next prime is 161053141. The reversal of 161053110 is 11350161.

161053110 is a `hidden beast` number, since 1 + 610 + 53 + 1 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 463957 + ... + 464303.

It is an arithmetic number, because the mean of its divisors is an integer number (4560192).

Almost surely, 2161053110 is an apocalyptic number.

161053110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 161053110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218889216).

161053110 is an abundant number, since it is smaller than the sum of its proper divisors (276725322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161053110 is a wasteful number, since it uses less digits than its factorization.

161053110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 161053110 is about 12690.6701950685. The cubic root of 161053110 is about 544.0719947788.

The spelling of 161053110 in words is "one hundred sixty-one million, fifty-three thousand, one hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 81 90 135 162 191 243 270 347 382 405 486 573 694 810 955 1041 1146 1215 1719 1735 1910 2082 2430 2865 3123 3438 3470 5157 5205 5730 6246 8595 9369 10314 10410 15471 15615 17190 18738 25785 28107 30942 31230 46413 46845 51570 56214 66277 77355 84321 92826 93690 132554 140535 154710 168642 198831 232065 281070 331385 397662 421605 464130 596493 662770 843210 994155 1192986 1789479 1988310 2982465 3578958 5368437 5964930 8947395 10736874 16105311 17894790 26842185 32210622 53684370 80526555 161053110