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203203120312029 = 31719231207185009
BaseRepresentation
bin101110001100111111101001…
…110011011010111011011101
3222122111000202211121021221010
4232030333221303122323131
5203113234442244441104
62000102120314125433
760541640515612335
oct5614775163327335
9878430684537833
10203203120312029
1159823a60a158a2
121a95a161a20879
13894cc836c8416
1438271251a20c5
151875ba5b64489
hexb8cfe9cdaedd

203203120312029 has 16 divisors (see below), whose sum is σ = 286889912087040. Its totient is φ = 127493366522880.

The previous prime is 203203120312021. The next prime is 203203120312043. The reversal of 203203120312029 is 920213021302302.

It is a happy number.

It is not a de Polignac number, because 203203120312029 - 23 = 203203120312021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203203120311987 and 203203120312005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203203120312021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102611724 + ... + 104573285.

It is an arithmetic number, because the mean of its divisors is an integer number (17930619505440).

Almost surely, 2203203120312029 is an apocalyptic number.

It is an amenable number.

203203120312029 is a deficient number, since it is larger than the sum of its proper divisors (83686791775011).

203203120312029 is a wasteful number, since it uses less digits than its factorization.

203203120312029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207204260.

The product of its (nonzero) digits is 7776, while the sum is 30.

The spelling of 203203120312029 in words is "two hundred three trillion, two hundred three billion, one hundred twenty million, three hundred twelve thousand, twenty-nine".

Divisors: 1 3 17 51 19231 57693 326927 980781 207185009 621555027 3522145153 10566435459 3984374908079 11953124724237 67734373437343 203203120312029