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102020012211 = 3138179319831
BaseRepresentation
bin101111100000011011…
…1011101100010110011
3100202022221122121001210
41133000313131202303
53132414110342321
6114511202531203
710241102536635
oct1370067354263
9322287577053
10102020012211
113a2a2701187
1217932366b03
13980b172940
144d1b448a55
1529c1751b76
hex17c0ddd8b3

102020012211 has 16 divisors (see below), whose sum is σ = 146508642560. Its totient is φ = 62773673760.

The previous prime is 102020012209. The next prime is 102020012239. The reversal of 102020012211 is 112210020201.

It is not a de Polignac number, because 102020012211 - 21 = 102020012209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102020012291) 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, 159066 + ... + 478896.

It is an arithmetic number, because the mean of its divisors is an integer number (9156790160).

Almost surely, 2102020012211 is an apocalyptic number.

102020012211 is a deficient number, since it is larger than the sum of its proper divisors (44488630349).

102020012211 is a wasteful number, since it uses less digits than its factorization.

102020012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328026.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102020012211 its reverse (112210020201), we get a palindrome (214230032412).

The spelling of 102020012211 in words is "one hundred two billion, twenty million, twelve thousand, two hundred eleven".

Divisors: 1 3 13 39 8179 24537 106327 318981 319831 959493 4157803 12473409 2615897749 7847693247 34006670737 102020012211