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223000131220 = 22531491732541
BaseRepresentation
bin1100111110101111010…
…1111111011010010100
3210022121021002102002021
43033223311333122110
512123201013144340
6250240030422524
722053102561106
oct3175365773224
9708537072067
10223000131220
1186634840209
1237276361a44
131804b425c89
14ab16a05576
155c027ace4a
hex33ebd7f694

223000131220 has 48 divisors (see below), whose sum is σ = 484391932416. Its totient is φ = 86146704000.

The previous prime is 223000131199. The next prime is 223000131239. The reversal of 223000131220 is 22131000322.

It is a junction number, because it is equal to n+sod(n) for n = 223000131194 and 223000131203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61851 + ... + 670690.

It is an arithmetic number, because the mean of its divisors is an integer number (10091498592).

Almost surely, 2223000131220 is an apocalyptic number.

223000131220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223000131220 is an abundant number, since it is smaller than the sum of its proper divisors (261391801196).

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

223000131220 is a wasteful number, since it uses less digits than its factorization.

223000131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733072 (or 733070 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 223000131220 its reverse (22131000322), we get a palindrome (245131131542).

The spelling of 223000131220 in words is "two hundred twenty-three billion, one hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 491 620 982 1964 2455 4910 9820 15221 30442 60884 76105 152210 304420 732541 1465082 2930164 3662705 7325410 14650820 22708771 45417542 90835084 113543855 227087710 359677631 454175420 719355262 1438710524 1798388155 3596776310 7193552620 11150006561 22300013122 44600026244 55750032805 111500065610 223000131220