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102022020105 = 3549113852277
BaseRepresentation
bin101111100000011111…
…1000111110000001001
3100202100002102121101020
41133000333013300021
53132420114120410
6114511313543053
710241125601565
oct1370077076011
9322302377336
10102022020105
113a2a38527a5
1217932b74a89
13980b6c6845
144d1b80c6a5
1529c19eba70
hex17c0fc7c09

102022020105 has 16 divisors (see below), whose sum is σ = 163567698624. Its totient is φ = 54300921920.

The previous prime is 102022020077. The next prime is 102022020109. The reversal of 102022020105 is 501020220201.

It is not a de Polignac number, because 102022020105 - 28 = 102022019849 is a prime.

It is a super-2 number, since 2×1020220201052 (a number of 23 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (102022020109) 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, 6918774 + ... + 6933503.

It is an arithmetic number, because the mean of its divisors is an integer number (10222981164).

Almost surely, 2102022020105 is an apocalyptic number.

102022020105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102022020105 is a deficient number, since it is larger than the sum of its proper divisors (61545678519).

102022020105 is a wasteful number, since it uses less digits than its factorization.

102022020105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13852776.

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

Adding to 102022020105 its reverse (501020220201), we get a palindrome (603042240306).

The spelling of 102022020105 in words is "one hundred two billion, twenty-two million, twenty thousand, one hundred five".

Divisors: 1 3 5 15 491 1473 2455 7365 13852277 41556831 69261385 207784155 6801468007 20404404021 34007340035 102022020105