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1242105332 = 221341582601
BaseRepresentation
bin100101000001001…
…0000010111110100
310012120020111012012
41022002100113310
510020434332312
6323130343352
742531502226
oct11202202764
93176214165
101242105332
11588155136
122a7b8ab58
1316a447390
14bad70416
15740a6322
hex4a0905f4

1242105332 has 24 divisors (see below), whose sum is σ = 2397989832. Its totient is φ = 559296000.

The previous prime is 1242105301. The next prime is 1242105407. The reversal of 1242105332 is 2335012421.

It can be written as a sum of positive squares in 4 ways, for example, as 233661796 + 1008443536 = 15286^2 + 31756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1242105298 and 1242105307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289169 + ... + 293432.

It is an arithmetic number, because the mean of its divisors is an integer number (99916243).

Almost surely, 21242105332 is an apocalyptic number.

It is an amenable number.

1242105332 is a deficient number, since it is larger than the sum of its proper divisors (1155884500).

1242105332 is a wasteful number, since it uses less digits than its factorization.

1242105332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582659 (or 582657 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1242105332 is about 35243.5147509439. The cubic root of 1242105332 is about 1074.9447476920.

Adding to 1242105332 its reverse (2335012421), we get a palindrome (3577117753).

The spelling of 1242105332 in words is "one billion, two hundred forty-two million, one hundred five thousand, three hundred thirty-two".

Divisors: 1 2 4 13 26 41 52 82 164 533 1066 2132 582601 1165202 2330404 7573813 15147626 23886641 30295252 47773282 95546564 310526333 621052666 1242105332