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2491203829 = 194110929339
BaseRepresentation
bin1001010001111100…
…1100000011110101
320102121122021012111
42110133030003311
520100222010304
61051111051021
7115506611632
oct22437140365
96377567174
102491203829
111069246344
12596370a71
1330916c80a
14198c01189
15e8a8e704
hex947cc0f5

2491203829 has 16 divisors (see below), whose sum is σ = 2711016000. Its totient is φ = 2281322880.

The previous prime is 2491203823. The next prime is 2491203857. The reversal of 2491203829 is 9283021942.

2491203829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2491203829 - 29 = 2491203317 is a prime.

It is a super-2 number, since 2×24912038292 = 12412193035248522482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2491203791 and 2491203800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2491203823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70242 + ... + 99580.

It is an arithmetic number, because the mean of its divisors is an integer number (169438500).

Almost surely, 22491203829 is an apocalyptic number.

It is an amenable number.

2491203829 is a deficient number, since it is larger than the sum of its proper divisors (219812171).

2491203829 is a wasteful number, since it uses less digits than its factorization.

2491203829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29508.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2491203829 is about 49911.9607809591. The cubic root of 2491203829 is about 1355.6151723462.

The spelling of 2491203829 in words is "two billion, four hundred ninety-one million, two hundred three thousand, eight hundred twenty-nine".

Divisors: 1 19 41 109 779 2071 4469 29339 84911 557441 1202899 3197951 22855081 60761069 131115991 2491203829