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80075739 = 353503621
BaseRepresentation
bin1001100010111…
…01101111011011
312120200021021010
410301131233123
5130444410424
611540145003
71661426652
oct461355733
9176607233
1080075739
11412230a7
1222998163
13137889c3
14a8c6199
15706b229
hex4c5dbdb

80075739 has 8 divisors (see below), whose sum is σ = 108782352. Its totient is φ = 52376480.

The previous prime is 80075713. The next prime is 80075741. The reversal of 80075739 is 93757008.

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 80075739 - 211 = 80073691 is a prime.

It is a super-2 number, since 2×800757392 = 12824247952792242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80075697 and 80075706.

It is not an unprimeable number, because it can be changed into a prime (80075789) 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, 251652 + ... + 251969.

It is an arithmetic number, because the mean of its divisors is an integer number (13597794).

Almost surely, 280075739 is an apocalyptic number.

80075739 is a deficient number, since it is larger than the sum of its proper divisors (28706613).

80075739 is a wasteful number, since it uses less digits than its factorization.

80075739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503677.

The product of its (nonzero) digits is 52920, while the sum is 39.

The square root of 80075739 is about 8948.5048471798. The cubic root of 80075739 is about 431.0228740576.

The spelling of 80075739 in words is "eighty million, seventy-five thousand, seven hundred thirty-nine".

Divisors: 1 3 53 159 503621 1510863 26691913 80075739