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2130145563 = 371331251701
BaseRepresentation
bin111111011110111…
…0111000100011011
312111110020121101010
41332331313010123
513330304124223
6551212225003
7103533636630
oct17675670433
95443217333
102130145563
119a3458987
124b546b163
1327c414180
14162c96187
15c701e393
hex7ef7711b

2130145563 has 32 divisors (see below), whose sum is σ = 3608399872. Its totient is φ = 1087344000.

The previous prime is 2130145561. The next prime is 2130145583. The reversal of 2130145563 is 3655410312.

It is not a de Polignac number, because 2130145563 - 21 = 2130145561 is a prime.

It is the 46154-th Hogben number.

It is a self number, because there is not a number n which added to its sum of digits gives 2130145563.

It is not an unprimeable number, because it can be changed into a prime (2130145561) by changing a digit.

It is a nontrivial repunit in base 46153.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117388 + ... + 134313.

It is an arithmetic number, because the mean of its divisors is an integer number (112762496).

Almost surely, 22130145563 is an apocalyptic number.

2130145563 is a deficient number, since it is larger than the sum of its proper divisors (1478254309).

2130145563 is a wasteful number, since it uses less digits than its factorization.

2130145563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251755.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 2130145563 is about 46153.5000081251. The cubic root of 2130145563 is about 1286.6776601639.

Adding to 2130145563 its reverse (3655410312), we get a palindrome (5785555875).

The spelling of 2130145563 in words is "two billion, one hundred thirty million, one hundred forty-five thousand, five hundred sixty-three".

Divisors: 1 3 7 13 21 31 39 91 93 217 273 403 651 1209 2821 8463 251701 755103 1761907 3272113 5285721 7802731 9816339 22904791 23408193 54619117 68714373 101435503 163857351 304306509 710048521 2130145563