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80438461051 = 1356087110321
BaseRepresentation
bin100101011101010000…
…0011000001001111011
321200121220011012111011
41022322200120021323
52304214221223201
6100541455214351
75545224431464
oct1127240301173
9250556135434
1080438461051
1131128461393
121370a8173b7
13777bc21620
143c710b1d6b
15215bc2d151
hex12ba81827b

80438461051 has 8 divisors (see below), whose sum is σ = 86628364704. Its totient is φ = 74248890240.

The previous prime is 80438461027. The next prime is 80438461127. The reversal of 80438461051 is 15016483408.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80438461051 - 27 = 80438460923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80438460995 and 80438461013.

It is not an unprimeable number, because it can be changed into a prime (80438461651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 673971 + ... + 784291.

It is an arithmetic number, because the mean of its divisors is an integer number (10828545588).

Almost surely, 280438461051 is an apocalyptic number.

80438461051 is a deficient number, since it is larger than the sum of its proper divisors (6189903653).

80438461051 is a wasteful number, since it uses less digits than its factorization.

80438461051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166421.

The product of its (nonzero) digits is 92160, while the sum is 40.

The spelling of 80438461051 in words is "eighty billion, four hundred thirty-eight million, four hundred sixty-one thousand, fifty-one".

Divisors: 1 13 56087 110321 729131 1434173 6187573927 80438461051