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172468320 = 25351918911
BaseRepresentation
bin10100100011110…
…10100001100000
3110000112022001120
422101322201200
5323122441240
625040332240
74162646043
oct1221724140
9400468046
10172468320
1189399002
1249914080
132996797b
1418c96c5a
151021bad0
hexa47a860

172468320 has 96 divisors (see below), whose sum is σ = 571898880. Its totient is φ = 43568640.

The previous prime is 172468319. The next prime is 172468327. The reversal of 172468320 is 23864271.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172468327) 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 15 ways as a sum of consecutive naturals, for example, 336 + ... + 18575.

It is an arithmetic number, because the mean of its divisors is an integer number (5957280).

Almost surely, 2172468320 is an apocalyptic number.

172468320 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 172468320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285949440).

172468320 is an abundant number, since it is smaller than the sum of its proper divisors (399430560).

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

172468320 is a wasteful number, since it uses less digits than its factorization.

172468320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18948 (or 18940 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 172468320 is about 13132.7194441974. The cubic root of 172468320 is about 556.6340609027.

The spelling of 172468320 in words is "one hundred seventy-two million, four hundred sixty-eight thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 76 80 95 96 114 120 152 160 190 228 240 285 304 380 456 480 570 608 760 912 1140 1520 1824 2280 3040 4560 9120 18911 37822 56733 75644 94555 113466 151288 189110 226932 283665 302576 359309 378220 453864 567330 605152 718618 756440 907728 1077927 1134660 1437236 1512880 1796545 1815456 2155854 2269320 2874472 3025760 3593090 4311708 4538640 5389635 5748944 7186180 8623416 9077280 10779270 11497888 14372360 17246832 21558540 28744720 34493664 43117080 57489440 86234160 172468320