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2028946231 = 13212005599
BaseRepresentation
bin111100011101111…
…0100001100110111
312020101211010222201
41320323310030313
513123402234411
6533155205331
7101164521064
oct17073641467
95211733881
102028946231
11951318374
124875a6847
13264470800
14153671c6b
15bd1ce3c1
hex78ef4337

2028946231 has 6 divisors (see below), whose sum is σ = 2197024800. Its totient is φ = 1872873288.

The previous prime is 2028946223. The next prime is 2028946237. The reversal of 2028946231 is 1326498202.

It is a happy number.

It is not a de Polignac number, because 2028946231 - 23 = 2028946223 is a prime.

It is a super-2 number, since 2×20289462312 = 8233245616578210722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2028946237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6002631 + ... + 6002968.

It is an arithmetic number, because the mean of its divisors is an integer number (366170800).

Almost surely, 22028946231 is an apocalyptic number.

2028946231 is a deficient number, since it is larger than the sum of its proper divisors (168078569).

2028946231 is a wasteful number, since it uses less digits than its factorization.

2028946231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12005625 (or 12005612 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 2028946231 is about 45043.8256701182. The cubic root of 2028946231 is about 1265.9702869405.

The spelling of 2028946231 in words is "two billion, twenty-eight million, nine hundred forty-six thousand, two hundred thirty-one".

Divisors: 1 13 169 12005599 156072787 2028946231