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13120230033 = 321457803337
BaseRepresentation
bin11000011100000011…
…01101001010010001
31020212101000202001200
430032001231022101
5203332234330113
610005524021413
7643063054341
oct141601551221
936771022050
1013120230033
115623034019
122661b31869
131311279531
148c6704d21
1551bca0873
hex30e06d291

13120230033 has 6 divisors (see below), whose sum is σ = 18951443394. Its totient is φ = 8746820016.

The previous prime is 13120230023. The next prime is 13120230107. The reversal of 13120230033 is 33003202131.

13120230033 is a `hidden beast` number, since 131 + 202 + 300 + 33 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8683071489 + 4437158544 = 93183^2 + 66612^2 .

It is not a de Polignac number, because 13120230033 - 24 = 13120230017 is a prime.

It is a super-2 number, since 2×131202300332 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13120229988 and 13120230015.

It is not an unprimeable number, because it can be changed into a prime (13120230023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 728901660 + ... + 728901677.

It is an arithmetic number, because the mean of its divisors is an integer number (3158573899).

Almost surely, 213120230033 is an apocalyptic number.

It is an amenable number.

13120230033 is a deficient number, since it is larger than the sum of its proper divisors (5831213361).

13120230033 is a wasteful number, since it uses less digits than its factorization.

13120230033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457803343 (or 1457803340 counting only the distinct ones).

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

Adding to 13120230033 its reverse (33003202131), we get a palindrome (46123432164).

The spelling of 13120230033 in words is "thirteen billion, one hundred twenty million, two hundred thirty thousand, thirty-three".

Divisors: 1 3 9 1457803337 4373410011 13120230033