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50030202031 = 265718829583
BaseRepresentation
bin101110100110000010…
…000100110010101111
311210010200122121000121
4232212002010302233
51304430212431111
634552240505411
73420536462215
oct564602046257
9153120577017
1050030202031
111a243821307
12984301b267
1349440b5954
1425c8752cb5
15147c35d871
hexba6084caf

50030202031 has 4 divisors (see below), whose sum is σ = 50049034272. Its totient is φ = 50011369792.

The previous prime is 50030202023. The next prime is 50030202091. The reversal of 50030202031 is 13020203005.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13020203005 = 52604040601.

It is a cyclic number.

It is not a de Polignac number, because 50030202031 - 23 = 50030202023 is a prime.

It is a super-2 number, since 2×500302020312 (a number of 22 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 = 50030201996 and 50030202014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50030202091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9412135 + ... + 9417448.

It is an arithmetic number, because the mean of its divisors is an integer number (12512258568).

Almost surely, 250030202031 is an apocalyptic number.

50030202031 is a deficient number, since it is larger than the sum of its proper divisors (18832241).

50030202031 is a wasteful number, since it uses less digits than its factorization.

50030202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18832240.

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 50030202031 its reverse (13020203005), we get a palindrome (63050405036).

The spelling of 50030202031 in words is "fifty billion, thirty million, two hundred two thousand, thirty-one".

Divisors: 1 2657 18829583 50030202031