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274164768 = 25321496389
BaseRepresentation
bin10000010101110…
…110110000100000
3201002220000100200
4100111312300200
51030141233033
643112145200
76536235123
oct2025666040
9632800320
10274164768
11130839059
1277998200
1344a53697
14285aa3ba
1519109013
hex10576c20

274164768 has 72 divisors (see below), whose sum is σ = 785011500. Its totient is φ = 90760704.

The previous prime is 274164743. The next prime is 274164769. The reversal of 274164768 is 867461472.

It can be written as a sum of positive squares in 2 ways, for example, as 190771344 + 83393424 = 13812^2 + 9132^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (274164769) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 39718 + ... + 46106.

Almost surely, 2274164768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 274164768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (392505750).

274164768 is an abundant number, since it is smaller than the sum of its proper divisors (510846732).

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

274164768 is a wasteful number, since it uses less digits than its factorization.

274164768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6554 (or 6543 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 274164768 is about 16557.9216087044. The cubic root of 274164768 is about 649.6366948056.

The spelling of 274164768 in words is "two hundred seventy-four million, one hundred sixty-four thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 149 288 298 447 596 894 1192 1341 1788 2384 2682 3576 4768 5364 6389 7152 10728 12778 14304 19167 21456 25556 38334 42912 51112 57501 76668 102224 115002 153336 204448 230004 306672 460008 613344 920016 951961 1840032 1903922 2855883 3807844 5711766 7615688 8567649 11423532 15231376 17135298 22847064 30462752 34270596 45694128 68541192 91388256 137082384 274164768