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181012100033332 = 22172787019551249
BaseRepresentation
bin101001001010000100101001…
…111011000010101100110100
3212201220120212110221100200101
4221022010221323002230310
5142211200240102031312
61440551451043323444
753061456403520011
oct5112045173025464
9781816773840611
10181012100033332
1152748889547357
1218375436080584
137a004a2061219
14329b064c2a708
1515dd817d9ea57
hexa4a129ec2b34

181012100033332 has 24 divisors (see below), whose sum is σ = 335406012165000. Its totient is φ = 85181850163200.

The previous prime is 181012100033293. The next prime is 181012100033399. The reversal of 181012100033332 is 233330001210181.

It can be written as a sum of positive squares in 4 ways, for example, as 114907980396196 + 66104119637136 = 10719514^2 + 8130444^2 .

It is a super-2 number, since 2×1810121000333322 (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 181012100033332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14176044 + ... + 23727292.

It is an arithmetic number, because the mean of its divisors is an integer number (13975250506875).

Almost surely, 2181012100033332 is an apocalyptic number.

It is an amenable number.

181012100033332 is a deficient number, since it is larger than the sum of its proper divisors (154393912131668).

181012100033332 is a wasteful number, since it uses less digits than its factorization.

181012100033332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9829971 (or 9829969 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 181012100033332 in words is "one hundred eighty-one trillion, twelve billion, one hundred million, thirty-three thousand, three hundred thirty-two".

Divisors: 1 2 4 17 34 68 278701 557402 1114804 4737917 9475834 9551249 18951668 19102498 38204996 162371233 324742466 649484932 2661942647549 5323885295098 10647770590196 45253025008333 90506050016666 181012100033332