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2130210423 = 3211128916693
BaseRepresentation
bin111111011111000…
…0110111001110111
312111110100220100100
41332332012321313
513330313213143
6551213445143
7103534330005
oct17676067167
95443326310
102130210423
119a34a2690
124b54a07b3
1327c437853
14162cb1a75
15c70336d3
hex7ef86e77

2130210423 has 24 divisors (see below), whose sum is σ = 3359500560. Its totient is φ = 1289957760.

The previous prime is 2130210421. The next prime is 2130210491. The reversal of 2130210423 is 3240120312.

2130210423 is a `hidden beast` number, since 2 + 1 + 30 + 210 + 423 = 666.

It is not a de Polignac number, because 2130210423 - 21 = 2130210421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130210396 and 2130210405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130210421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119265 + ... + 135957.

It is an arithmetic number, because the mean of its divisors is an integer number (139979190).

Almost surely, 22130210423 is an apocalyptic number.

2130210423 is a deficient number, since it is larger than the sum of its proper divisors (1229290137).

2130210423 is a wasteful number, since it uses less digits than its factorization.

2130210423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17999 (or 17996 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2130210423 is about 46154.2026580462. The cubic root of 2130210423 is about 1286.6907192192.

Adding to 2130210423 its reverse (3240120312), we get a palindrome (5370330735).

The spelling of 2130210423 in words is "two billion, one hundred thirty million, two hundred ten thousand, four hundred twenty-three".

Divisors: 1 3 9 11 33 99 1289 3867 11601 14179 16693 42537 50079 127611 150237 183623 550869 1652607 21517277 64551831 193655493 236690047 710070141 2130210423