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30513102340 = 2257750729033
BaseRepresentation
bin11100011010101110…
…001111111000000100
32220202111210012110111
4130122232033320010
5444442323233330
622003441402404
72130100043020
oct343256177004
986674705414
1030513102340
1111a3893a456
125ab6939404
132b53786b56
141696651380
15bd8bce32a
hex71ab8fe04

30513102340 has 48 divisors (see below), whose sum is σ = 73243723392. Its totient is φ = 10459881216.

The previous prime is 30513102299. The next prime is 30513102343. The reversal of 30513102340 is 4320131503.

It is a super-2 number, since 2×305131023402 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30513102343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1036464 + ... + 1065496.

It is an arithmetic number, because the mean of its divisors is an integer number (1525910904).

Almost surely, 230513102340 is an apocalyptic number.

It is an amenable number.

30513102340 is an abundant number, since it is smaller than the sum of its proper divisors (42730621052).

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

30513102340 is a wasteful number, since it uses less digits than its factorization.

30513102340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36556 (or 36554 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 30513102340 its reverse (4320131503), we get a palindrome (34833233843).

The spelling of 30513102340 in words is "thirty billion, five hundred thirteen million, one hundred two thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 7507 15014 29033 30028 37535 52549 58066 75070 105098 116132 145165 150140 203231 210196 262745 290330 406462 525490 580660 812924 1016155 1050980 2032310 4064620 217950731 435901462 871802924 1089753655 1525655117 2179507310 3051310234 4359014620 6102620468 7628275585 15256551170 30513102340