Search a number
-
+
193172480 = 2105291301
BaseRepresentation
bin10111000001110…
…01010000000000
3111110111011211022
423200321100000
5343423004410
631100205012
74533640034
oct1340712000
9443434738
10193172480
119a04a386
1254839768
1331036757
141b9261c4
1511e5b455
hexb839400

193172480 has 88 divisors (see below), whose sum is σ = 479734920. Its totient is φ = 74547200.

The previous prime is 193172477. The next prime is 193172531. The reversal of 193172480 is 84271391.

It can be written as a sum of positive squares in 4 ways, for example, as 295936 + 192876544 = 544^2 + 13888^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 193172480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147830 + ... + 149130.

Almost surely, 2193172480 is an apocalyptic number.

193172480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 193172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239867460).

193172480 is an abundant number, since it is smaller than the sum of its proper divisors (286562440).

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

193172480 is a wasteful number, since it uses less digits than its factorization.

193172480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355 (or 1337 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 193172480 is about 13898.6502941832. The cubic root of 193172480 is about 578.0717574732.

The spelling of 193172480 in words is "one hundred ninety-three million, one hundred seventy-two thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 29 32 40 58 64 80 116 128 145 160 232 256 290 320 464 512 580 640 928 1024 1160 1280 1301 1856 2320 2560 2602 3712 4640 5120 5204 6505 7424 9280 10408 13010 14848 18560 20816 26020 29696 37120 37729 41632 52040 74240 75458 83264 104080 148480 150916 166528 188645 208160 301832 333056 377290 416320 603664 666112 754580 832640 1207328 1332224 1509160 1665280 2414656 3018320 3330560 4829312 6036640 6661120 9658624 12073280 19317248 24146560 38634496 48293120 96586240 193172480