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164303772 = 22313691981
BaseRepresentation
bin10011100101100…
…01001110011100
3102110011111101220
421302301032130
5314030210042
624145333340
74033362513
oct1162611634
9373144356
10164303772
1184821946
1247037250
1328069689
1417b6d67a
15e6578ec
hex9cb139c

164303772 has 12 divisors (see below), whose sum is σ = 383375496. Its totient is φ = 54767920.

The previous prime is 164303767. The next prime is 164303779. The reversal of 164303772 is 277303461.

164303772 is digitally balanced in base 2, 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 (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164303779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6845979 + ... + 6846002.

It is an arithmetic number, because the mean of its divisors is an integer number (31947958).

Almost surely, 2164303772 is an apocalyptic number.

164303772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

164303772 is an abundant number, since it is smaller than the sum of its proper divisors (219071724).

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

164303772 is a wasteful number, since it uses less digits than its factorization.

164303772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13691988 (or 13691986 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 33.

The square root of 164303772 is about 12818.1032918291. The cubic root of 164303772 is about 547.7081179561.

It can be divided in two parts, 16430 and 3772, that added together give a palindrome (20202).

The spelling of 164303772 in words is "one hundred sixty-four million, three hundred three thousand, seven hundred seventy-two".

Divisors: 1 2 3 4 6 12 13691981 27383962 41075943 54767924 82151886 164303772