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30072544460 = 2257540739727
BaseRepresentation
bin11100000000011101…
…101001110011001100
32212121210210112122222
4130000131221303030
5443042032410320
621452022554512
72113140260510
oct340035516314
985553715588
1030072544460
1111832192832
1259b3298a38
132ab3414b0a
141653d30140
15bb01a8825
hex700769ccc

30072544460 has 48 divisors (see below), whose sum is σ = 72189272064. Its totient is φ = 10308420288.

The previous prime is 30072544423. The next prime is 30072544471. The reversal of 30072544460 is 6444527003.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 30072544460.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737117 + ... + 776843.

It is an arithmetic number, because the mean of its divisors is an integer number (1503943168).

Almost surely, 230072544460 is an apocalyptic number.

It is an amenable number.

30072544460 is an abundant number, since it is smaller than the sum of its proper divisors (42116727604).

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

30072544460 is a wasteful number, since it uses less digits than its factorization.

30072544460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45150 (or 45148 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 30072544460 in words is "thirty billion, seventy-two million, five hundred forty-four thousand, four hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 5407 10814 21628 27035 37849 39727 54070 75698 79454 108140 151396 158908 189245 198635 278089 378490 397270 556178 756980 794540 1112356 1390445 2780890 5561780 214803889 429607778 859215556 1074019445 1503627223 2148038890 3007254446 4296077780 6014508892 7518136115 15036272230 30072544460