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201032031 = 3292310713
BaseRepresentation
bin10111111101110…
…00000101011111
3112000021111002210
423332320011133
5402431011111
631540451503
74660513134
oct1376700537
9460244083
10201032031
11a3528382
12573a9b93
1332858c85
141c9b058b
15129b00a6
hexbfb815f

201032031 has 8 divisors (see below), whose sum is σ = 277285680. Its totient is φ = 129399872.

The previous prime is 201032023. The next prime is 201032033. The reversal of 201032031 is 130230102.

It is a happy number.

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 201032031 - 23 = 201032023 is a prime.

It is a super-2 number, since 2×2010320312 = 80827754975969922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201031998 and 201032016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201032033) 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, 1155270 + ... + 1155443.

It is an arithmetic number, because the mean of its divisors is an integer number (34660710).

Almost surely, 2201032031 is an apocalyptic number.

201032031 is a deficient number, since it is larger than the sum of its proper divisors (76253649).

201032031 is a wasteful number, since it uses less digits than its factorization.

201032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310745.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 201032031 is about 14178.5764800279. The cubic root of 201032031 is about 585.8077147156.

Adding to 201032031 its reverse (130230102), we get a palindrome (331262133).

The spelling of 201032031 in words is "two hundred one million, thirty-two thousand, thirty-one".