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201033000031 = 474277297873
BaseRepresentation
bin1011101100111010000…
…0000010010001011111
3201012220100001112010211
42323032200002101133
511243203422000111
6232204150513251
720344533206623
oct2731640022137
9635810045124
10201033000031
1178291984436
1232b65665827
1315c5a3419b6
149a3137d183
155368ec3521
hex2ece80245f

201033000031 has 4 divisors (see below), whose sum is σ = 205310297952. Its totient is φ = 196755702112.

The previous prime is 201033000029. The next prime is 201033000053. The reversal of 201033000031 is 130000330102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 201033000031 - 21 = 201033000029 is a prime.

It is a super-2 number, since 2×2010330000312 (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 = 201032999975 and 201033000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201033000431) 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, 2138648890 + ... + 2138648983.

It is an arithmetic number, because the mean of its divisors is an integer number (51327574488).

Almost surely, 2201033000031 is an apocalyptic number.

201033000031 is a deficient number, since it is larger than the sum of its proper divisors (4277297921).

201033000031 is an equidigital number, since it uses as much as digits as its factorization.

201033000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277297920.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 201033000031 its reverse (130000330102), we get a palindrome (331033330133).

The spelling of 201033000031 in words is "two hundred one billion, thirty-three million, thirty-one", and thus it is an aban number.

Divisors: 1 47 4277297873 201033000031