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102121430241 = 3295923983243
BaseRepresentation
bin101111100011011101…
…0010101110011100001
3100202121000111011110010
41133012322111303201
53133121041231431
6114525224355133
710243443556215
oct1370672256341
9322530434403
10102121430241
113a344981036
1217960315aa9
1398261919cc
144d2aac8945
1529ca5d6846
hex17c6e95ce1

102121430241 has 32 divisors (see below), whose sum is σ = 143845632000. Its totient is φ = 64348063808.

The previous prime is 102121430239. The next prime is 102121430249. The reversal of 102121430241 is 142034121201.

It is not a de Polignac number, because 102121430241 - 21 = 102121430239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102121430249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1185166 + ... + 1268408.

It is an arithmetic number, because the mean of its divisors is an integer number (4495176000).

Almost surely, 2102121430241 is an apocalyptic number.

It is an amenable number.

102121430241 is a deficient number, since it is larger than the sum of its proper divisors (41724201759).

102121430241 is a wasteful number, since it uses less digits than its factorization.

102121430241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83573.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 102121430241 its reverse (142034121201), we get a palindrome (244155551442).

The spelling of 102121430241 in words is "one hundred two billion, one hundred twenty-one million, four hundred thirty thousand, two hundred forty-one".

Divisors: 1 3 29 59 87 177 239 717 1711 5133 6931 14101 20793 42303 83243 249729 408929 1226787 2414047 4911337 7242141 14734011 19895077 59685231 142428773 427286319 576957233 1173809543 1730871699 3521428629 34040476747 102121430241