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203213231033 = 2367131871013
BaseRepresentation
bin1011110101000001110…
…0111101001110111001
3201102112021112201211012
42331100130331032321
511312140041343113
6233204352443305
720452545651341
oct2752034751671
9642467481735
10203213231033
117920063123a
1233473849535
1316216c41107
149b9ab51d21
1554455d7aa8
hex2f5073d3b9

203213231033 has 8 divisors (see below), whose sum is σ = 215213494848. Its totient is φ = 191476709424.

The previous prime is 203213231003. The next prime is 203213231051. The reversal of 203213231033 is 330132312302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203213231033 - 214 = 203213214649 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203213231003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65933966 + ... + 65937047.

It is an arithmetic number, because the mean of its divisors is an integer number (26901686856).

Almost surely, 2203213231033 is an apocalyptic number.

203213231033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

203213231033 is a deficient number, since it is larger than the sum of its proper divisors (12000263815).

203213231033 is a wasteful number, since it uses less digits than its factorization.

203213231033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131871103.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 203213231033 its reverse (330132312302), we get a palindrome (533345543335).

The spelling of 203213231033 in words is "two hundred three billion, two hundred thirteen million, two hundred thirty-one thousand, thirty-three".

Divisors: 1 23 67 1541 131871013 3033033299 8835357871 203213231033