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2101184157 = 33728366889
BaseRepresentation
bin111110100111101…
…1000011010011101
312102102202012210110
41331033120122131
513300400343112
6544255400233
7103032525222
oct17517303235
95372665713
102101184157
11989077836
124a7823079
13276413b47
1415d0b7949
15c46ed13c
hex7d3d869d

2101184157 has 16 divisors (see below), whose sum is σ = 2887507520. Its totient is φ = 1358093952.

The previous prime is 2101184131. The next prime is 2101184167. The reversal of 2101184157 is 7514811012.

It is not a de Polignac number, because 2101184157 - 212 = 2101180061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101184117) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2032 + ... + 64857.

It is an arithmetic number, because the mean of its divisors is an integer number (180469220).

Almost surely, 22101184157 is an apocalyptic number.

It is an amenable number.

2101184157 is a deficient number, since it is larger than the sum of its proper divisors (786323363).

2101184157 is a wasteful number, since it uses less digits than its factorization.

2101184157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67212.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 2101184157 is about 45838.6753408080. The cubic root of 2101184157 is about 1280.8198192487.

Adding to 2101184157 its reverse (7514811012), we get a palindrome (9615995169).

The spelling of 2101184157 in words is "two billion, one hundred one million, one hundred eighty-four thousand, one hundred fifty-seven".

Divisors: 1 3 37 111 283 849 10471 31413 66889 200667 2474893 7424679 18929587 56788761 700394719 2101184157