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2031253101 = 324094491229
BaseRepresentation
bin111100100010010…
…0111011001101101
312020120011100102100
41321010213121231
513130000044401
6533320445313
7101223236463
oct17104473155
95216140370
102031253101
11952653579
12488319839
13264a9a817
14153ab2833
15bd4d7b86
hex7912766d

2031253101 has 24 divisors (see below), whose sum is σ = 2950155000. Its totient is φ = 1346752512.

The previous prime is 2031253087. The next prime is 2031253123. The reversal of 2031253101 is 1013521302.

It can be written as a sum of positive squares in 4 ways, for example, as 1489574025 + 541679076 = 38595^2 + 23274^2 .

It is not a de Polignac number, because 2031253101 - 230 = 957511277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031253151) 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 23 ways as a sum of consecutive naturals, for example, 1652155 + ... + 1653383.

It is an arithmetic number, because the mean of its divisors is an integer number (122923125).

Almost surely, 22031253101 is an apocalyptic number.

It is an amenable number.

2031253101 is a deficient number, since it is larger than the sum of its proper divisors (918901899).

2031253101 is a wasteful number, since it uses less digits than its factorization.

2031253101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093 (or 2090 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2031253101 is about 45069.4253457929. The cubic root of 2031253101 is about 1266.4498992482.

Adding to 2031253101 its reverse (1013521302), we get a palindrome (3044774403).

The spelling of 2031253101 in words is "two billion, thirty-one million, two hundred fifty-three thousand, one hundred one".

Divisors: 1 3 9 409 449 1227 1229 1347 3681 3687 4041 11061 183641 502661 550923 551821 1507983 1652769 1655463 4523949 4966389 225694789 677084367 2031253101