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1023442030 = 251321931873
BaseRepresentation
bin111101000000000…
…111110001101110
32122022210020112101
4331000013301232
54044000121110
6245315525314
734235054002
oct7500076156
92568706471
101023442030
11485785166
122468b983a
13134057200
1499cd0702
155ecb213a
hex3d007c6e

1023442030 has 48 divisors (see below), whose sum is σ = 2099859120. Its totient is φ = 357986304.

The previous prime is 1023442027. The next prime is 1023442039. The reversal of 1023442030 is 302443201.

1023442030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1023441989 and 1023442007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023442039) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16174 + ... + 48046.

It is an arithmetic number, because the mean of its divisors is an integer number (43747065).

Almost surely, 21023442030 is an apocalyptic number.

1023442030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023442030 is an abundant number, since it is smaller than the sum of its proper divisors (1076417090).

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

1023442030 is a wasteful number, since it uses less digits than its factorization.

1023442030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31925 (or 31912 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1023442030 is about 31991.2805307946. The cubic root of 1023442030 is about 1007.7537342198.

Adding to 1023442030 its reverse (302443201), we get a palindrome (1325885231).

The spelling of 1023442030 in words is "one billion, twenty-three million, four hundred forty-two thousand, thirty".

Divisors: 1 2 5 10 13 19 26 38 65 95 130 169 190 247 338 494 845 1235 1690 2470 3211 6422 16055 31873 32110 63746 159365 318730 414349 605587 828698 1211174 2071745 3027935 4143490 5386537 6055870 7872631 10773074 15745262 26932685 39363155 53865370 78726310 102344203 204688406 511721015 1023442030