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2102103142 = 21764499587
BaseRepresentation
bin111110101001011…
…1000110001100110
312102111110220101221
41331102320301212
513301114300032
6544331210554
7103043403406
oct17522706146
95374426357
102102103142
11989645227
124a7ba6a5a
13276676219
1415d276806
15c4830597
hex7d4b8c66

2102103142 has 16 divisors (see below), whose sum is σ = 3339500400. Its totient is φ = 988968448.

The previous prime is 2102103137. The next prime is 2102103161. The reversal of 2102103142 is 2413012012.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 214473 + ... + 224059.

It is an arithmetic number, because the mean of its divisors is an integer number (208718775).

Almost surely, 22102103142 is an apocalyptic number.

2102103142 is a deficient number, since it is larger than the sum of its proper divisors (1237397258).

2102103142 is a wasteful number, since it uses less digits than its factorization.

2102103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16055.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102103142 is about 45848.6983675655. The cubic root of 2102103142 is about 1281.0065207393.

Adding to 2102103142 its reverse (2413012012), we get a palindrome (4515115154).

The spelling of 2102103142 in words is "two billion, one hundred two million, one hundred three thousand, one hundred forty-two".

Divisors: 1 2 17 34 6449 9587 12898 19174 109633 162979 219266 325958 61826563 123653126 1051051571 2102103142