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226625420 = 22571639931
BaseRepresentation
bin11011000001000…
…00011110001100
3120210102202122002
431200200132030
5431004003140
634253211432
75421166340
oct1540403614
9523382562
10226625420
11106a1903a
1263a90b78
1337c4a2a8
1422153620
1514d68415
hexd82078c

226625420 has 48 divisors (see below), whose sum is σ = 547292928. Its totient is φ = 77215680.

The previous prime is 226625411. The next prime is 226625447. The reversal of 226625420 is 24526622.

It is a happy number.

It is an unprimeable number.

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, 17855 + ... + 27785.

It is an arithmetic number, because the mean of its divisors is an integer number (11401936).

Almost surely, 2226625420 is an apocalyptic number.

226625420 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 226625420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273646464).

226625420 is an abundant number, since it is smaller than the sum of its proper divisors (320667508).

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

226625420 is a wasteful number, since it uses less digits than its factorization.

226625420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10110 (or 10108 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 226625420 is about 15054.0831670348. The cubic root of 226625420 is about 609.6812990762.

It can be divided in two parts, 22662 and 5420, that added together give a palindrome (28082).

The spelling of 226625420 in words is "two hundred twenty-six million, six hundred twenty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 163 326 652 815 1141 1630 2282 3260 4564 5705 9931 11410 19862 22820 39724 49655 69517 99310 139034 198620 278068 347585 695170 1390340 1618753 3237506 6475012 8093765 11331271 16187530 22662542 32375060 45325084 56656355 113312710 226625420