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1230635130 = 235195473947
BaseRepresentation
bin100100101011010…
…0000000001111010
310011202122202000220
41021112200001322
510010020311010
6322040440510
742332140344
oct11126400172
93152582026
101230635130
1158173042a
122a4179136
13167c5c58a
14b9626294
157308c970
hex495a007a

1230635130 has 64 divisors (see below), whose sum is σ = 3115445760. Its totient is φ = 310250304.

The previous prime is 1230635113. The next prime is 1230635137. The reversal of 1230635130 is 315360321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230635130.

It is not an unprimeable number, because it can be changed into a prime (1230635137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 309817 + ... + 313763.

It is an arithmetic number, because the mean of its divisors is an integer number (48678840).

Almost surely, 21230635130 is an apocalyptic number.

1230635130 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 1230635130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557722880).

1230635130 is an abundant number, since it is smaller than the sum of its proper divisors (1884810630).

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

1230635130 is a wasteful number, since it uses less digits than its factorization.

1230635130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4523.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 1230635130 is about 35080.4094901984. The cubic root of 1230635130 is about 1071.6256565193.

Adding to 1230635130 its reverse (315360321), we get a palindrome (1545995451).

The spelling of 1230635130 in words is "one billion, two hundred thirty million, six hundred thirty-five thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 19 30 38 57 95 114 190 285 547 570 1094 1641 2735 3282 3947 5470 7894 8205 10393 11841 16410 19735 20786 23682 31179 39470 51965 59205 62358 74993 103930 118410 149986 155895 224979 311790 374965 449958 749930 1124895 2159009 2249790 4318018 6477027 10795045 12954054 21590090 32385135 41021171 64770270 82042342 123063513 205105855 246127026 410211710 615317565 1230635130