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162121048 = 2347431173
BaseRepresentation
bin10011010100111…
…00010101011000
3102022001121021021
421222130111120
5313000333143
624030452224
74006002055
oct1152342530
9368047237
10162121048
1183570a41
1246364074
132778401b
141776202c
15e375ced
hex9a9c558

162121048 has 16 divisors (see below), whose sum is σ = 310445280. Its totient is φ = 79335648.

The previous prime is 162121033. The next prime is 162121067. The reversal of 162121048 is 840121261.

162121048 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 215211 + ... + 215962.

It is an arithmetic number, because the mean of its divisors is an integer number (19402830).

Almost surely, 2162121048 is an apocalyptic number.

It is an amenable number.

162121048 is a deficient number, since it is larger than the sum of its proper divisors (148324232).

162121048 is a wasteful number, since it uses less digits than its factorization.

162121048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431226 (or 431222 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 162121048 is about 12732.6763879398. The cubic root of 162121048 is about 545.2719210911.

The spelling of 162121048 in words is "one hundred sixty-two million, one hundred twenty-one thousand, forty-eight".

Divisors: 1 2 4 8 47 94 188 376 431173 862346 1724692 3449384 20265131 40530262 81060524 162121048