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69486828 = 2235790569
BaseRepresentation
bin1000010010001…
…00100011101100
311211202022000020
410021010203230
5120242034303
610521202140
71502425335
oct411044354
9154668006
1069486828
1136250534
121b330350
131151c088
14932b28c
156178a53
hex42448ec

69486828 has 12 divisors (see below), whose sum is σ = 162135960. Its totient is φ = 23162272.

The previous prime is 69486827. The next prime is 69486829. The reversal of 69486828 is 82868496.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (69486827) and next prime (69486829).

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (69486827) 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, 2895273 + ... + 2895296.

It is an arithmetic number, because the mean of its divisors is an integer number (13511330).

Almost surely, 269486828 is an apocalyptic number.

It is an amenable number.

69486828 is an abundant number, since it is smaller than the sum of its proper divisors (92649132).

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

69486828 is a wasteful number, since it uses less digits than its factorization.

69486828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5790576 (or 5790574 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 51.

The square root of 69486828 is about 8335.8759587700. The cubic root of 69486828 is about 411.1189501846.

The spelling of 69486828 in words is "sixty-nine million, four hundred eighty-six thousand, eight hundred twenty-eight".

Divisors: 1 2 3 4 6 12 5790569 11581138 17371707 23162276 34743414 69486828