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161035384 = 2371509557
BaseRepresentation
bin10011001100100…
…11010001111000
3102020000110000111
421212103101320
5312211113014
623551314104
73663530626
oct1146232170
9366013014
10161035384
118299a2a4
1245b1b934
1327493b13
141755c516
15e20e2c4
hex9993478

161035384 has 32 divisors (see below), whose sum is σ = 307346400. Its totient is φ = 79085440.

The previous prime is 161035379. The next prime is 161035409. The reversal of 161035384 is 483530161.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288834 + ... + 289390.

It is an arithmetic number, because the mean of its divisors is an integer number (9604575).

Almost surely, 2161035384 is an apocalyptic number.

It is an amenable number.

161035384 is a deficient number, since it is larger than the sum of its proper divisors (146311016).

161035384 is a wasteful number, since it uses less digits than its factorization.

161035384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 161035384 is about 12689.9717887787. The cubic root of 161035384 is about 544.0520333014.

The spelling of 161035384 in words is "one hundred sixty-one million, thirty-five thousand, three hundred eighty-four".

Divisors: 1 2 4 8 71 142 284 509 557 568 1018 1114 2036 2228 4072 4456 36139 39547 72278 79094 144556 158188 283513 289112 316376 567026 1134052 2268104 20129423 40258846 80517692 161035384