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30516403780 = 2252236842243
BaseRepresentation
bin11100011010111010…
…110101111001000100
32220202201222221012001
4130122322311321010
5444444144410110
622004040235044
72130140103142
oct343272657104
986681887161
1030516403780
1111a3a794915
125ab7a6ba84
132b54371775
141696c70592
15bd913263a
hex71aeb5e44

30516403780 has 24 divisors (see below), whose sum is σ = 64371831552. Its totient is φ = 12151821792.

The previous prime is 30516403769. The next prime is 30516403793. The reversal of 30516403780 is 8730461503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3416662 + ... + 3425581.

It is an arithmetic number, because the mean of its divisors is an integer number (2682159648).

Almost surely, 230516403780 is an apocalyptic number.

It is an amenable number.

30516403780 is an abundant number, since it is smaller than the sum of its proper divisors (33855427772).

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

30516403780 is a wasteful number, since it uses less digits than its factorization.

30516403780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6842475 (or 6842473 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 30516403780 in words is "thirty billion, five hundred sixteen million, four hundred three thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 223 446 892 1115 2230 4460 6842243 13684486 27368972 34211215 68422430 136844860 1525820189 3051640378 6103280756 7629100945 15258201890 30516403780