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161358048 = 2533186757
BaseRepresentation
bin10011001111000…
…10000011100000
3102020121211122000
421213202003200
5312301424143
624002244000
73666343425
oct1147420340
9366554560
10161358048
118309a765
1246056600
1327577947
1417603d4c
15e274bd3
hex99e20e0

161358048 has 48 divisors (see below), whose sum is σ = 470630160. Its totient is φ = 53785728.

The previous prime is 161358031. The next prime is 161358077. The reversal of 161358048 is 840853161.

161358048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92515 + ... + 94242.

It is an arithmetic number, because the mean of its divisors is an integer number (9804795).

Almost surely, 2161358048 is an apocalyptic number.

161358048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161358048 is an abundant number, since it is smaller than the sum of its proper divisors (309272112).

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

161358048 is a wasteful number, since it uses less digits than its factorization.

161358048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186776 (or 186762 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 161358048 is about 12702.6787726054. The cubic root of 161358048 is about 544.4151603050.

The spelling of 161358048 in words is "one hundred sixty-one million, three hundred fifty-eight thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 186757 373514 560271 747028 1120542 1494056 1680813 2241084 2988112 3361626 4482168 5042439 5976224 6723252 8964336 10084878 13446504 17928672 20169756 26893008 40339512 53786016 80679024 161358048