Search a number
-
+
225379300 = 2252232931109
BaseRepresentation
bin11010110111100…
…00001111100100
3120201002110021111
431123300033210
5430144114200
634210354404
75404456336
oct1533601744
9521073244
10225379300
11106247893
126358ba04
1337902043
1421d0b456
1514bbe0ba
hexd6f03e4

225379300 has 144 divisors (see below), whose sum is σ = 549964800. Its totient is φ = 79833600.

The previous prime is 225379283. The next prime is 225379303. The reversal of 225379300 is 3973522.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (225379303) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2067646 + ... + 2067754.

It is an arithmetic number, because the mean of its divisors is an integer number (3819200).

Almost surely, 2225379300 is an apocalyptic number.

225379300 is a gapful number since it is divisible by the number (20) 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 225379300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274982400).

225379300 is an abundant number, since it is smaller than the sum of its proper divisors (324585500).

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

225379300 is a wasteful number, since it uses less digits than its factorization.

225379300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 225379300 is about 15012.6380093573. The cubic root of 225379300 is about 608.5617823837.

The spelling of 225379300 in words is "two hundred twenty-five million, three hundred seventy-nine thousand, three hundred".

Divisors: 1 2 4 5 10 20 23 25 29 31 46 50 58 62 92 100 109 115 116 124 145 155 218 230 290 310 436 460 545 575 580 620 667 713 725 775 899 1090 1150 1334 1426 1450 1550 1798 2180 2300 2507 2668 2725 2852 2900 3100 3161 3335 3379 3565 3596 4495 5014 5450 6322 6670 6758 7130 8990 10028 10900 12535 12644 13340 13516 14260 15805 16675 16895 17825 17980 20677 22475 25070 31610 33350 33790 35650 41354 44950 50140 62675 63220 66700 67580 71300 72703 77717 79025 82708 84475 89900 97991 103385 125350 145406 155434 158050 168950 195982 206770 250700 290812 310868 316100 337900 363515 388585 391964 413540 489955 516925 727030 777170 979910 1033850 1454060 1554340 1817575 1942925 1959820 2067700 2253793 2449775 3635150 3885850 4507586 4899550 7270300 7771700 9015172 9799100 11268965 22537930 45075860 56344825 112689650 225379300