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82680460 = 2254134023
BaseRepresentation
bin1001110110110…
…01101010001100
312202120121021021
410323121222030
5132131233320
612112043524
72022525622
oct473315214
9182517237
1082680460
1142742065
12238335a4
131418b465
14ada3512
1573d2daa
hex4ed9a8c

82680460 has 12 divisors (see below), whose sum is σ = 173629008. Its totient is φ = 33072176.

The previous prime is 82680427. The next prime is 82680463. The reversal of 82680460 is 6408628.

It is not an unprimeable number, because it can be changed into a prime (82680463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066992 + ... + 2067031.

It is an arithmetic number, because the mean of its divisors is an integer number (14469084).

Almost surely, 282680460 is an apocalyptic number.

It is an amenable number.

82680460 is an abundant number, since it is smaller than the sum of its proper divisors (90948548).

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

82680460 is a wasteful number, since it uses less digits than its factorization.

82680460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134032 (or 4134030 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 82680460 is about 9092.8796318878. The cubic root of 82680460 is about 435.6465656901.

The spelling of 82680460 in words is "eighty-two million, six hundred eighty thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 4134023 8268046 16536092 20670115 41340230 82680460