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17385420291934 = 2291317132275771
BaseRepresentation
bin1111110011111101101111…
…0011001111111101011110
32021120000210211110200122211
43330333123303033331132
54234320320043320214
6100550430221031034
73443024631134152
oct374773363177536
967500724420584
1017385420291934
1155a312a577252
121b494b20b547a
13991590670996
1444165d06b062
1520237c0970c4
hexfcfdbccff5e

17385420291934 has 16 divisors (see below), whose sum is σ = 26977592988720. Its totient is φ = 8392894110720.

The previous prime is 17385420291929. The next prime is 17385420291997. The reversal of 17385420291934 is 43919202458371.

It is a Harshad number since it is a multiple of its sum of digits (58).

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, 6501469 + ... + 8777239.

It is an arithmetic number, because the mean of its divisors is an integer number (1686099561795).

Almost surely, 217385420291934 is an apocalyptic number.

17385420291934 is a deficient number, since it is larger than the sum of its proper divisors (9592172696786).

17385420291934 is a wasteful number, since it uses less digits than its factorization.

17385420291934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407515.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 17385420291934 in words is "seventeen trillion, three hundred eighty-five billion, four hundred twenty million, two hundred ninety-one thousand, nine hundred thirty-four".

Divisors: 1 2 29 58 131713 263426 2275771 3819677 4551542 7639354 65997359 131994718 299748625723 599497251446 8692710145967 17385420291934