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2130817964 = 221169592
BaseRepresentation
bin111111100000001…
…1011001110101100
312111111111202201212
41333000123032230
513330442133324
6551234453552
7103542440162
oct17700331654
95444452655
102130817964
119a3878090
124b57342b8
1327c5bb242
14162dcd232
15c710370e
hex7f01b3ac

2130817964 has 18 divisors (see below), whose sum is σ = 4068509844. Its totient is φ = 968414440.

The previous prime is 2130817939. The next prime is 2130817967. The reversal of 2130817964 is 4697180312.

It is not an unprimeable number, because it can be changed into a prime (2130817967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 302717 + ... + 309675.

Almost surely, 22130817964 is an apocalyptic number.

It is an amenable number.

2130817964 is a deficient number, since it is larger than the sum of its proper divisors (1937691880).

2130817964 is an frugal number, since it uses more digits than its factorization.

2130817964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13933 (or 6972 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 2130817964 is about 46160.7838321665. The cubic root of 2130817964 is about 1286.8130299940.

The spelling of 2130817964 in words is "two billion, one hundred thirty million, eight hundred seventeen thousand, nine hundred sixty-four".

Divisors: 1 2 4 11 22 44 6959 13918 27836 76549 153098 306196 48427681 96855362 193710724 532704491 1065408982 2130817964