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30540741 = 3711294797
BaseRepresentation
bin111010010000…
…0001111000101
32010110122000120
41310200033011
530304300431
63010332153
7520410030
oct164401705
963418016
1030540741
111626a790
12a28a059
13643415a
1440b0017
152a34196
hex1d203c5

30540741 has 64 divisors (see below), whose sum is σ = 54190080. Its totient is φ = 14837760.

The previous prime is 30540737. The next prime is 30540743. The reversal of 30540741 is 14704503.

It is not a de Polignac number, because 30540741 - 22 = 30540737 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30540743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 314805 + ... + 314901.

It is an arithmetic number, because the mean of its divisors is an integer number (846720).

Almost surely, 230540741 is an apocalyptic number.

It is an amenable number.

30540741 is a deficient number, since it is larger than the sum of its proper divisors (23649339).

30540741 is a wasteful number, since it uses less digits than its factorization.

30540741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 30540741 is about 5526.3677944921. The cubic root of 30540741 is about 312.5790426189.

The spelling of 30540741 in words is "thirty million, five hundred forty thousand, seven hundred forty-one".

Divisors: 1 3 7 11 21 29 33 47 77 87 97 141 203 231 291 319 329 517 609 679 957 987 1067 1363 1551 2037 2233 2813 3201 3619 4089 4559 6699 7469 8439 9541 10857 13677 14993 19691 22407 28623 30943 31913 44979 50149 59073 92829 95739 104951 132211 150447 216601 314853 351043 396633 649803 925477 1053129 1454321 2776431 4362963 10180247 30540741