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1022143230 = 2325231014889
BaseRepresentation
bin111100111011001…
…010101011111110
32122020100020220200
4330323022223332
54043132040410
6245232024330
734221034263
oct7473125376
92566306820
101022143230
11484a78379
122463920a6
131339c0ca4
1499a7326a
155eb073c0
hex3cecaafe

1022143230 has 96 divisors (see below), whose sum is σ = 2801148480. Its totient is φ = 258086400.

The previous prime is 1022143229. The next prime is 1022143259. The reversal of 1022143230 is 323412201.

1022143230 is a `hidden beast` number, since 10 + 221 + 432 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206626 + ... + 211514.

It is an arithmetic number, because the mean of its divisors is an integer number (29178630).

Almost surely, 21022143230 is an apocalyptic number.

1022143230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1022143230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400574240).

1022143230 is an abundant number, since it is smaller than the sum of its proper divisors (1779005250).

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

1022143230 is a wasteful number, since it uses less digits than its factorization.

1022143230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5023 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1022143230 is about 31970.9748052824. The cubic root of 1022143230 is about 1007.3272568435.

Adding to 1022143230 its reverse (323412201), we get a palindrome (1345555431).

The spelling of 1022143230 in words is "one billion, twenty-two million, one hundred forty-three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 23 30 45 46 69 90 101 115 138 202 207 230 303 345 414 505 606 690 909 1010 1035 1515 1818 2070 2323 3030 4545 4646 4889 6969 9090 9778 11615 13938 14667 20907 23230 24445 29334 34845 41814 44001 48890 69690 73335 88002 104535 112447 146670 209070 220005 224894 337341 440010 493789 562235 674682 987578 1012023 1124470 1481367 1686705 2024046 2468945 2962734 3373410 4444101 4937890 5060115 7406835 8888202 10120230 11357147 14813670 22220505 22714294 34071441 44441010 56785735 68142882 102214323 113571470 170357205 204428646 340714410 511071615 1022143230