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80417681408 = 21219633223
BaseRepresentation
bin100101011100101000…
…1000111000000000000
321200120110001111011202
41022321101013000000
52304143411301113
6100535434000332
75544553004441
oct1127121070000
9250513044152
1080417681408
1131117759329
12137038760a8
13777782738c
143c6c4232c8
152159ec6258
hex12b9447000

80417681408 has 26 divisors (see below), whose sum is σ = 160815737784. Its totient is φ = 40208838656.

The previous prime is 80417681401. The next prime is 80417681411. The reversal of 80417681408 is 80418671408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80417681401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9812516 + ... + 9820707.

It is an arithmetic number, because the mean of its divisors is an integer number (6185220684).

Almost surely, 280417681408 is an apocalyptic number.

It is an amenable number.

80417681408 is a deficient number, since it is larger than the sum of its proper divisors (80398056376).

80417681408 is an equidigital number, since it uses as much as digits as its factorization.

80417681408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19633247 (or 19633225 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 80417681408 in words is "eighty billion, four hundred seventeen million, six hundred eighty-one thousand, four hundred eight".

Divisors: 1 2 4 8 16 32 64 128 256 512 1024 2048 4096 19633223 39266446 78532892 157065784 314131568 628263136 1256526272 2513052544 5026105088 10052210176 20104420352 40208840704 80417681408