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80435238 = 23135319457
BaseRepresentation
bin1001100101101…
…01100000100110
312121100112101220
410302311200212
5131042411423
611552001210
71664455032
oct462654046
9177315356
1080435238
1141449204
1222b30206
1313883520
14a97b1c2
1570dc9e3
hex4cb5826

80435238 has 32 divisors (see below), whose sum is σ = 176522976. Its totient is φ = 24281088.

The previous prime is 80435237. The next prime is 80435273. The reversal of 80435238 is 83253408.

It is a junction number, because it is equal to n+sod(n) for n = 80435199 and 80435208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80435237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5595 + ... + 13862.

It is an arithmetic number, because the mean of its divisors is an integer number (5516343).

Almost surely, 280435238 is an apocalyptic number.

80435238 is an abundant number, since it is smaller than the sum of its proper divisors (96087738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80435238 is a wasteful number, since it uses less digits than its factorization.

80435238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19528.

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 80435238 is about 8968.5694511444. The cubic root of 80435238 is about 431.6669350651. Note that the first 3 decimals are identical.

The spelling of 80435238 in words is "eighty million, four hundred thirty-five thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 13 26 39 53 78 106 159 318 689 1378 2067 4134 19457 38914 58371 116742 252941 505882 758823 1031221 1517646 2062442 3093663 6187326 13405873 26811746 40217619 80435238