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203002003031 = 1918743570043
BaseRepresentation
bin1011110100001111011…
…1001011111001010111
3201101222120002020110212
42331003313023321113
511311222003044111
6233131405240035
720444402361302
oct2750367137127
9641876066425
10203002003031
117910237a543
1233414b6301b
13161b2255329
149b7aa89b39
155431cb198b
hex2f43dcbe57

203002003031 has 8 divisors (see below), whose sum is σ = 213698094720. Its totient is φ = 192307088952.

The previous prime is 203002003027. The next prime is 203002003079. The reversal of 203002003031 is 130300200302.

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 203002003031 - 22 = 203002003027 is a prime.

It is a super-2 number, since 2×2030020030312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203002002997 and 203002003015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203002053031) 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, 71096 + ... + 641138.

It is an arithmetic number, because the mean of its divisors is an integer number (26712261840).

Almost surely, 2203002003031 is an apocalyptic number.

203002003031 is a deficient number, since it is larger than the sum of its proper divisors (10696091689).

203002003031 is a wasteful number, since it uses less digits than its factorization.

203002003031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588805.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 203002003031 its reverse (130300200302), we get a palindrome (333302203333).

The spelling of 203002003031 in words is "two hundred three billion, two million, three thousand, thirty-one".

Divisors: 1 19 18743 356117 570043 10830817 10684315949 203002003031