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10423530 = 23251359151
BaseRepresentation
bin100111110000…
…110011101010
3201121120101200
4213300303222
510132023110
61011225030
7154412205
oct47606352
921546350
1010423530
11597a397
1235a8176
13220c590
14155493c
15dad6c0
hex9f0cea

10423530 has 96 divisors (see below), whose sum is σ = 29877120. Its totient is φ = 2505600.

The previous prime is 10423513. The next prime is 10423537. The reversal of 10423530 is 3532401.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10423537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68955 + ... + 69105.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

It is a vampire number, since it can be written as 23014530 (with its own digits).

Almost surely, 210423530 is an apocalyptic number.

10423530 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 10423530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14938560).

10423530 is an abundant number, since it is smaller than the sum of its proper divisors (19453590).

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

10423530 is a wasteful number, since it uses less digits than its factorization.

10423530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 233 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 10423530 is about 3228.5492097845. The cubic root of 10423530 is about 218.4430710448.

Adding to 10423530 its reverse (3532401), we get a palindrome (13955931).

The spelling of 10423530 in words is "ten million, four hundred twenty-three thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 13 15 18 26 30 39 45 59 65 78 90 117 118 130 151 177 195 234 295 302 354 390 453 531 585 590 755 767 885 906 1062 1170 1359 1510 1534 1770 1963 2265 2301 2655 2718 3835 3926 4530 4602 5310 5889 6795 6903 7670 8909 9815 11505 11778 13590 13806 17667 17818 19630 23010 26727 29445 34515 35334 44545 53454 58890 69030 80181 88335 89090 115817 133635 160362 176670 231634 267270 347451 400905 579085 694902 801810 1042353 1158170 1737255 2084706 3474510 5211765 10423530