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102012201105 = 3514945643043
BaseRepresentation
bin101111100000001100…
…1101010100010010001
3100202022101221202020120
41133000121222202101
53132410110413410
6114510323300453
710240646255013
oct1370031524221
9322271852216
10102012201105
113a299256621
121792b81a729
139809669499
144d1a3b41b3
1529c0c0c570
hex17c066a891

102012201105 has 16 divisors (see below), whose sum is σ = 164314958400. Its totient is φ = 54041361728.

The previous prime is 102012201059. The next prime is 102012201113. The reversal of 102012201105 is 501102210201.

It is a cyclic number.

It is not a de Polignac number, because 102012201105 - 29 = 102012200593 is a prime.

It is a super-3 number, since 3×1020122011053 (a number of 34 digits) contains 333 as substring.

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 15 ways as a sum of consecutive naturals, for example, 22819287 + ... + 22823756.

It is an arithmetic number, because the mean of its divisors is an integer number (10269684900).

Almost surely, 2102012201105 is an apocalyptic number.

102012201105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102012201105 is a deficient number, since it is larger than the sum of its proper divisors (62302757295).

102012201105 is a wasteful number, since it uses less digits than its factorization.

102012201105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45643200.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 102012201105 its reverse (501102210201), we get a palindrome (603114411306).

The spelling of 102012201105 in words is "one hundred two billion, twelve million, two hundred one thousand, one hundred five".

Divisors: 1 3 5 15 149 447 745 2235 45643043 136929129 228215215 684645645 6800813407 20402440221 34004067035 102012201105