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55405000120410 = 23254481137382529
BaseRepresentation
bin11001001100011111110110…
…10110011101100001011010
321021011122222201110012021200
430212033323112131201122
524230223420012323120
6313500412232015030
714445610360412643
oct1446177326354132
9237148881405250
1055405000120410
1116721146187466
126269a3a531476
1324bb890cc6bb5
14d9788b2466ca
15661327c06e90
hex3263fb59d85a

55405000120410 has 48 divisors (see below), whose sum is σ = 144085148873640. Its totient is φ = 14771369410560.

The previous prime is 55405000120403. The next prime is 55405000120433. The reversal of 55405000120410 is 1402100050455.

55405000120410 is a `hidden beast` number, since 55 + 405 + 0 + 0 + 0 + 1 + 204 + 1 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 55399276138761 + 5723981649 = 7443069^2 + 75657^2 .

It is a super-2 number, since 2×554050001204102 (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68287975 + ... + 69094554.

Almost surely, 255405000120410 is an apocalyptic number.

55405000120410 is an abundant number, since it is smaller than the sum of its proper divisors (88680148753230).

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

55405000120410 is a wasteful number, since it uses less digits than its factorization.

55405000120410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137387023 (or 137387020 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 55405000120410 its reverse (1402100050455), we get a palindrome (56807100170865).

The spelling of 55405000120410 in words is "fifty-five trillion, four hundred five billion, one hundred twenty thousand, four hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 4481 8962 13443 22405 26886 40329 44810 67215 80658 134430 201645 403290 137382529 274765058 412147587 686912645 824295174 1236442761 1373825290 2060737935 2472885522 4121475870 6182213805 12364427610 615611112449 1231222224898 1846833337347 3078055562245 3693666674694 5540500012041 6156111124490 9234166686735 11081000024082 18468333373470 27702500060205 55405000120410