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30442311132 = 22343283208469
BaseRepresentation
bin11100010110100000…
…001100110111011100
32220120120120122011220
4130112200030313130
5444321212424012
621552432213340
72125250242452
oct342640146734
986516518156
1030442311132
1111a01988a22
125a9709a250
132b41bcc16c
14168b0a49d2
15bd289908c
hex71680cddc

30442311132 has 48 divisors (see below), whose sum is σ = 72941151360. Its totient is φ = 9876379968.

The previous prime is 30442311131. The next prime is 30442311161. The reversal of 30442311132 is 23111324403.

It is a happy number.

It is a super-2 number, since 2×304423111322 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30442311131) 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 15 ways as a sum of consecutive naturals, for example, 41794 + ... + 250262.

It is an arithmetic number, because the mean of its divisors is an integer number (1519607320).

Almost surely, 230442311132 is an apocalyptic number.

It is an amenable number.

30442311132 is an abundant number, since it is smaller than the sum of its proper divisors (42498840228).

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

30442311132 is a wasteful number, since it uses less digits than its factorization.

30442311132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208802 (or 208800 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 30442311132 its reverse (23111324403), we get a palindrome (53553635535).

The spelling of 30442311132 in words is "thirty billion, four hundred forty-two million, three hundred eleven thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 43 86 129 172 258 283 516 566 849 1132 1698 3396 12169 24338 36507 48676 73014 146028 208469 416938 625407 833876 1250814 2501628 8964167 17928334 26892501 35856668 53785002 58996727 107570004 117993454 176990181 235986908 353980362 707960724 2536859261 5073718522 7610577783 10147437044 15221155566 30442311132