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102010104042 = 237211170918457
BaseRepresentation
bin101111100000001000…
…1101010100011101010
3100202022021000012121120
41133000101222203222
53132404041312132
6114510210320110
710240622402100
oct1370021524352
9322267005546
10102010104042
113a298054010
121792ab89036
1398090b3b12
144d19dc9c70
1529c094602c
hex17c046a8ea

102010104042 has 96 divisors (see below), whose sum is σ = 259070581440. Its totient is φ = 26479192320.

The previous prime is 102010104037. The next prime is 102010104061. The reversal of 102010104042 is 240401010201.

It is a super-4 number, since 4×1020101040424 (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5517678 + ... + 5536134.

It is an arithmetic number, because the mean of its divisors is an integer number (2698651890).

Almost surely, 2102010104042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102010104042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129535290720).

102010104042 is an abundant number, since it is smaller than the sum of its proper divisors (157060477398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102010104042 is a wasteful number, since it uses less digits than its factorization.

102010104042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20196 (or 20189 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102010104042 its reverse (240401010201), we get a palindrome (342411114243).

The spelling of 102010104042 in words is "one hundred two billion, ten million, one hundred four thousand, forty-two".

Divisors: 1 2 3 6 7 11 14 21 22 33 42 49 66 77 98 147 154 231 294 462 539 1078 1617 1709 3234 3418 5127 10254 11963 18457 18799 23926 35889 36914 37598 55371 56397 71778 83741 110742 112794 129199 131593 167482 203027 251223 258398 263186 387597 394779 406054 502446 609081 775194 789558 904393 921151 1218162 1421189 1808786 1842302 2713179 2763453 2842378 4263567 5426358 5526906 8527134 9948323 19896646 29844969 31543013 59689938 63086026 94629039 189258078 220801091 346973143 441602182 662403273 693946286 1040919429 1324806546 1545607637 2081838858 2428812001 3091215274 4636822911 4857624002 7286436003 9273645822 14572872006 17001684007 34003368014 51005052021 102010104042