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102002202105 = 354323677743
BaseRepresentation
bin101111011111111001…
…1100001010111111001
3100202021201010202012020
41132333303201113321
53132400030431410
6114505325105053
710240465261266
oct1367763412771
9322251122166
10102002202105
113a293647191
12179283b8189
13980757820b
144d18d3026d
1529bedd4a70
hex17bfce15f9

102002202105 has 24 divisors (see below), whose sum is σ = 167087265408. Its totient is φ = 53136016416.

The previous prime is 102002202091. The next prime is 102002202143. The reversal of 102002202105 is 501202200201.

It is not a de Polignac number, because 102002202105 - 28 = 102002201849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1811137 + ... + 1866606.

It is an arithmetic number, because the mean of its divisors is an integer number (6961969392).

Almost surely, 2102002202105 is an apocalyptic number.

102002202105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102002202105 is a deficient number, since it is larger than the sum of its proper divisors (65085063303).

102002202105 is an equidigital number, since it uses as much as digits as its factorization.

102002202105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677837 (or 3677794 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

Adding to 102002202105 its reverse (501202200201), we get a palindrome (603204402306).

The spelling of 102002202105 in words is "one hundred two billion, two million, two hundred two thousand, one hundred five".

Divisors: 1 3 5 15 43 129 215 645 1849 5547 9245 27735 3677743 11033229 18388715 55166145 158142949 474428847 790714745 2372144235 6800146807 20400440421 34000734035 102002202105