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1230210342 = 2353497253
BaseRepresentation
bin100100101010011…
…1000010100100110
310011201212011100000
41021110320110212
510004413212332
6322023402130
742325421034
oct11124702446
93151764300
101230210342
11581470269
122a3bb3346
13167b4111a
14b9555554
1573006b7c
hex49538526

1230210342 has 48 divisors (see below), whose sum is σ = 2772478800. Its totient is φ = 408838752.

The previous prime is 1230210341. The next prime is 1230210379. The reversal of 1230210342 is 2430120321.

1230210342 is a `hidden beast` number, since 12 + 302 + 10 + 342 = 666.

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

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230210341) 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 23 ways as a sum of consecutive naturals, for example, 165988 + ... + 173240.

It is an arithmetic number, because the mean of its divisors is an integer number (57759975).

Almost surely, 21230210342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230210342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1386239400).

1230210342 is an abundant number, since it is smaller than the sum of its proper divisors (1542268458).

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

1230210342 is an equidigital number, since it uses as much as digits as its factorization.

1230210342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7619 (or 7607 counting only the distinct ones).

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

The square root of 1230210342 is about 35074.3544773101. The cubic root of 1230210342 is about 1071.5023418463.

Adding to 1230210342 its reverse (2430120321), we get a palindrome (3660330663).

The spelling of 1230210342 in words is "one billion, two hundred thirty million, two hundred ten thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 243 349 486 698 1047 2094 3141 6282 7253 9423 14506 18846 21759 28269 43518 56538 65277 84807 130554 169614 195831 391662 587493 1174986 1762479 2531297 3524958 5062594 7593891 15187782 22781673 45563346 68345019 136690038 205035057 410070114 615105171 1230210342