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2102122030 = 25239139661
BaseRepresentation
bin111110101001011…
…1101011000101110
312102111111212022111
41331102331120232
513301120401110
6544331434234
7103043512441
oct17522753056
95374455274
102102122030
11989658438
124a7bb597a
132766819b8
1415d27d658
15c4835e8a
hex7d4bd62e

2102122030 has 16 divisors (see below), whose sum is σ = 3948333984. Its totient is φ = 804290080.

The previous prime is 2102121979. The next prime is 2102122067. The reversal of 2102122030 is 302212012.

It is a super-2 number, since 2×21021220302 = 8837834058022641800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102122030.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4569601 + ... + 4570060.

It is an arithmetic number, because the mean of its divisors is an integer number (246770874).

Almost surely, 22102122030 is an apocalyptic number.

2102122030 is a deficient number, since it is larger than the sum of its proper divisors (1846211954).

2102122030 is a wasteful number, since it uses less digits than its factorization.

2102122030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9139691.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2102122030 is about 45848.9043489591. The cubic root of 2102122030 is about 1281.0103574649.

Adding to 2102122030 its reverse (302212012), we get a palindrome (2404334042).

The spelling of 2102122030 in words is "two billion, one hundred two million, one hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 23 46 115 230 9139661 18279322 45698305 91396610 210212203 420424406 1051061015 2102122030