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234245220 = 2235112571381
BaseRepresentation
bin11011111011001…
…00110001100100
3121022202220000220
431331210301210
5434431321340
635124404340
75543023446
oct1575446144
9538686026
10234245220
111102529a0
12665466b0
13396b7651
1423178496
1515870ed0
hexdf64c64

234245220 has 96 divisors (see below), whose sum is σ = 718816896. Its totient is φ = 56524800.

The previous prime is 234245201. The next prime is 234245233. The reversal of 234245220 is 22542432.

234245220 = 4992 + 5002 + ... + 9382.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 168930 + ... + 170310.

It is an arithmetic number, because the mean of its divisors is an integer number (7487676).

Almost surely, 2234245220 is an apocalyptic number.

234245220 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 234245220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359408448).

234245220 is an abundant number, since it is smaller than the sum of its proper divisors (484571676).

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

234245220 is a wasteful number, since it uses less digits than its factorization.

234245220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1659 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 234245220 is about 15305.0717084240. The cubic root of 234245220 is about 616.4391966813.

Adding to 234245220 its reverse (22542432), we get a palindrome (256787652).

The spelling of 234245220 in words is "two hundred thirty-four million, two hundred forty-five thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 257 330 514 660 771 1028 1285 1381 1542 2570 2762 2827 3084 3855 4143 5140 5524 5654 6905 7710 8286 8481 11308 13810 14135 15191 15420 16572 16962 20715 27620 28270 30382 33924 41430 42405 45573 56540 60764 75955 82860 84810 91146 151910 169620 182292 227865 303820 354917 455730 709834 911460 1064751 1419668 1774585 2129502 3549170 3904087 4259004 5323755 7098340 7808174 10647510 11712261 15616348 19520435 21295020 23424522 39040870 46849044 58561305 78081740 117122610 234245220