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20875233333 = 36958411111
BaseRepresentation
bin10011011100010000…
…101100100000110101
31222212211102201200010
4103130100230200311
5320223024431313
613331232410433
71336210361403
oct233420544065
958784381603
1020875233333
118942585859
1240670a6a19
131c78b0c396
141020636473
15822a044c3
hex4dc42c835

20875233333 has 4 divisors (see below), whose sum is σ = 27833644448. Its totient is φ = 13916822220.

The previous prime is 20875233257. The next prime is 20875233391. The reversal of 20875233333 is 33333257802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20875233333 - 234 = 3695364149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20875233291 and 20875233300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20875233733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3479205553 + ... + 3479205558.

It is an arithmetic number, because the mean of its divisors is an integer number (6958411112).

Almost surely, 220875233333 is an apocalyptic number.

It is an amenable number.

20875233333 is a deficient number, since it is larger than the sum of its proper divisors (6958411115).

20875233333 is an equidigital number, since it uses as much as digits as its factorization.

20875233333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6958411114.

The product of its (nonzero) digits is 272160, while the sum is 39.

The spelling of 20875233333 in words is "twenty billion, eight hundred seventy-five million, two hundred thirty-three thousand, three hundred thirty-three".

Divisors: 1 3 6958411111 20875233333