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50000405505 = 35471731972081
BaseRepresentation
bin101110100100010000…
…011010010000000001
311210001121120202212120
4232210100122100001
51304400100434010
634545254114453
73420025301661
oct564420322001
9153047522776
1050000405505
111a228a1a786
12983504ba29
13493ab8247b
1425c47d81a1
151479924e70
hexba441a401

50000405505 has 64 divisors (see below), whose sum is σ = 82631881728. Its totient is φ = 25804513280.

The previous prime is 50000405489. The next prime is 50000405509. The reversal of 50000405505 is 50550400005.

It is not a de Polignac number, because 50000405505 - 24 = 50000405489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50000405509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24026065 + ... + 24028145.

It is an arithmetic number, because the mean of its divisors is an integer number (1291123152).

Almost surely, 250000405505 is an apocalyptic number.

It is an amenable number.

50000405505 is a deficient number, since it is larger than the sum of its proper divisors (32631476223).

50000405505 is a wasteful number, since it uses less digits than its factorization.

50000405505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506.

The product of its (nonzero) digits is 2500, while the sum is 24.

The spelling of 50000405505 in words is "fifty billion, four hundred five thousand, five hundred five".

Divisors: 1 3 5 15 47 141 173 197 235 519 591 705 865 985 2081 2595 2955 6243 8131 9259 10405 24393 27777 31215 34081 40655 46295 97807 102243 121965 138885 170405 293421 360013 409957 489035 511215 1080039 1229871 1467105 1601807 1800065 2049785 4805421 5400195 6149355 8009035 16920611 19267979 24027105 50761833 57803937 70922561 84603055 96339895 212767683 253809165 289019685 354612805 1063838415 3333360367 10000081101 16666801835 50000405505