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2130154908 = 223758743201
BaseRepresentation
bin111111011110111…
…1001010110011100
312111110021002012020
41332331321112130
513330304424113
6551212340140
7103534006110
oct17675712634
95443232166
102130154908
119a3464a02
124b5474650
1327c4184bb
14162c99740
15c7022023
hex7ef7959c

2130154908 has 48 divisors (see below), whose sum is σ = 5690221824. Its totient is φ = 607564800.

The previous prime is 2130154889. The next prime is 2130154909. The reversal of 2130154908 is 8094510312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130154909) 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, 27708 + ... + 70908.

It is an arithmetic number, because the mean of its divisors is an integer number (118546288).

Almost surely, 22130154908 is an apocalyptic number.

2130154908 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2130154908 is an abundant number, since it is smaller than the sum of its proper divisors (3560066916).

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

2130154908 is a wasteful number, since it uses less digits than its factorization.

2130154908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43802 (or 43800 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 2130154908 is about 46153.6012462733. The cubic root of 2130154908 is about 1286.6795417231.

The spelling of 2130154908 in words is "two billion, one hundred thirty million, one hundred fifty-four thousand, nine hundred eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 587 1174 1761 2348 3522 4109 7044 8218 12327 16436 24654 43201 49308 86402 129603 172804 259206 302407 518412 604814 907221 1209628 1814442 3628884 25358987 50717974 76076961 101435948 152153922 177512909 304307844 355025818 532538727 710051636 1065077454 2130154908