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30340572 = 22371149239
BaseRepresentation
bin111001110111…
…1010111011100
32010002110102220
41303233113130
530231344242
63002145340
7515614323
oct163572734
963073386
1030340572
1116143359
12a1b2250
136394002
14405b0ba
1529e4bec
hex1cef5dc

30340572 has 48 divisors (see below), whose sum is σ = 72576000. Its totient is φ = 9862720.

The previous prime is 30340559. The next prime is 30340577. The reversal of 30340572 is 27504303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30340577) 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, 126829 + ... + 127067.

It is an arithmetic number, because the mean of its divisors is an integer number (1512000).

Almost surely, 230340572 is an apocalyptic number.

It is an amenable number.

30340572 is an abundant number, since it is smaller than the sum of its proper divisors (42235428).

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

30340572 is a wasteful number, since it uses less digits than its factorization.

30340572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30340572 is about 5508.2276641403. The cubic root of 30340572 is about 311.8946472041.

Adding to 30340572 its reverse (27504303), we get a palindrome (57844875).

The spelling of 30340572 in words is "thirty million, three hundred forty thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 71 142 149 213 239 284 298 426 447 478 596 717 852 894 956 1434 1788 2868 10579 16969 21158 31737 33938 35611 42316 50907 63474 67876 71222 101814 106833 126948 142444 203628 213666 427332 2528381 5056762 7585143 10113524 15170286 30340572