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1242103230 = 232553260399
BaseRepresentation
bin100101000001000…
…1111110110111110
310012120020101022100
41022002033312332
510020434300410
6323130325530
742531463134
oct11202176676
93176211270
101242103230
115881535a5
122a7b898a6
1316a446434
14bad6d754
15740a58c0
hex4a08fdbe

1242103230 has 48 divisors (see below), whose sum is σ = 3290414400. Its totient is φ = 324976704.

The previous prime is 1242103229. The next prime is 1242103231. The reversal of 1242103230 is 323012421.

1242103230 is a `hidden beast` number, since 12 + 421 + 0 + 3 + 230 = 666.

It is an interprime number because it is at equal distance from previous prime (1242103229) and next prime (1242103231).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242103231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125430 + ... + 134969.

It is an arithmetic number, because the mean of its divisors is an integer number (68550300).

Almost surely, 21242103230 is an apocalyptic number.

1242103230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242103230 is an abundant number, since it is smaller than the sum of its proper divisors (2048311170).

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

1242103230 is a wasteful number, since it uses less digits than its factorization.

1242103230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260465 (or 260462 counting only the distinct ones).

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

The square root of 1242103230 is about 35243.4849298420. The cubic root of 1242103230 is about 1074.9441413196.

Adding to 1242103230 its reverse (323012421), we get a palindrome (1565115651).

The spelling of 1242103230 in words is "one billion, two hundred forty-two million, one hundred three thousand, two hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 53 90 106 159 265 318 477 530 795 954 1590 2385 4770 260399 520798 781197 1301995 1562394 2343591 2603990 3905985 4687182 7811970 11717955 13801147 23435910 27602294 41403441 69005735 82806882 124210323 138011470 207017205 248420646 414034410 621051615 1242103230