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2102011104 = 253171287997
BaseRepresentation
bin111110101001010…
…0010010011100000
312102111022020011010
41331102202103200
513301103323404
6544325220520
7103042541154
oct17522422340
95374266133
102102011104
11989592066
124a7b61740
1327664336b
1415d251064
15c4813189
hex7d4a24e0

2102011104 has 48 divisors (see below), whose sum is σ = 5842358928. Its totient is φ = 659453952.

The previous prime is 2102011103. The next prime is 2102011133. The reversal of 2102011104 is 4011102012.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 2102011104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102011103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642367 + ... + 645630.

It is an arithmetic number, because the mean of its divisors is an integer number (121715811).

Almost surely, 22102011104 is an apocalyptic number.

2102011104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2102011104 is an abundant number, since it is smaller than the sum of its proper divisors (3740347824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102011104 is a wasteful number, since it uses less digits than its factorization.

2102011104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288027 (or 1288019 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 2102011104 is about 45847.6946421519. The cubic root of 2102011104 is about 1280.9878247016.

Adding to 2102011104 its reverse (4011102012), we get a palindrome (6113113116).

The spelling of 2102011104 in words is "two billion, one hundred two million, eleven thousand, one hundred four".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 136 204 272 408 544 816 1632 1287997 2575994 3863991 5151988 7727982 10303976 15455964 20607952 21895949 30911928 41215904 43791898 61823856 65687847 87583796 123647712 131375694 175167592 262751388 350335184 525502776 700670368 1051005552 2102011104