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2130031323 = 3572178889
BaseRepresentation
bin111111011110101…
…1011001011011011
312111110000210200000
41332331123023123
513330242000243
6551205544043
7103532652600
oct17675331333
95443023600
102130031323
119a3390072
124b5415023
1327c3a4184
14162c666a7
15c6eea5d3
hex7ef5b2db

2130031323 has 36 divisors (see below), whose sum is σ = 3711609720. Its totient is φ = 1217153952.

The previous prime is 2130031313. The next prime is 2130031327. The reversal of 2130031323 is 3231300312.

It is not a de Polignac number, because 2130031323 - 24 = 2130031307 is a prime.

It is a super-2 number, since 2×21300313232 = 9074066873922260658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2130031296 and 2130031305.

It is not an unprimeable number, because it can be changed into a prime (2130031327) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77538 + ... + 101351.

It is an arithmetic number, because the mean of its divisors is an integer number (103100270).

Almost surely, 22130031323 is an apocalyptic number.

2130031323 is a deficient number, since it is larger than the sum of its proper divisors (1581578397).

2130031323 is an equidigital number, since it uses as much as digits as its factorization.

2130031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178918 (or 178899 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2130031323 is about 46152.2623822495. The cubic root of 2130031323 is about 1286.6546581860.

Adding to 2130031323 its reverse (3231300312), we get a palindrome (5361331635).

The spelling of 2130031323 in words is "two billion, one hundred thirty million, thirty-one thousand, three hundred twenty-three".

Divisors: 1 3 7 9 21 27 49 63 81 147 189 243 441 567 1323 1701 3969 11907 178889 536667 1252223 1610001 3756669 4830003 8765561 11270007 14490009 26296683 33810021 43470027 78890049 101430063 236670147 304290189 710010441 2130031323