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2102124001 = 175315115451
BaseRepresentation
bin111110101001011…
…1101110111100001
312102111111222000111
41331102331313201
513301120432001
6544331451321
7103043521255
oct17522756741
95374458014
102102124001
1198965996a
124a7bb6b41
13276682873
1415d280265
15c4836851
hex7d4bdde1

2102124001 has 16 divisors (see below), whose sum is σ = 2282940288. Its totient is φ = 1928160000.

The previous prime is 2102123993. The next prime is 2102124007. The reversal of 2102124001 is 1004212012.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2102124001 - 23 = 2102123993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102124007) 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, 128326 + ... + 143776.

It is an arithmetic number, because the mean of its divisors is an integer number (142683768).

Almost surely, 22102124001 is an apocalyptic number.

It is an amenable number.

2102124001 is a deficient number, since it is larger than the sum of its proper divisors (180816287).

2102124001 is a wasteful number, since it uses less digits than its factorization.

2102124001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15672.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2102124001 is about 45848.9258434699. The cubic root of 2102124001 is about 1281.0107578334.

Adding to 2102124001 its reverse (1004212012), we get a palindrome (3106336013).

The spelling of 2102124001 in words is "two billion, one hundred two million, one hundred twenty-four thousand, one".

Divisors: 1 17 53 151 901 2567 8003 15451 136051 262667 818903 2333101 13921351 39662717 123654353 2102124001