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82757148 = 2236896429
BaseRepresentation
bin1001110111011…
…00011000011100
312202201111110120
410323230120130
5132141212043
612113434540
72023265325
oct473543034
9182644416
1082757148
1142794741
122386ba50
13141b7336
14adc344c
1573ea983
hex4eec61c

82757148 has 12 divisors (see below), whose sum is σ = 193100040. Its totient is φ = 27585712.

The previous prime is 82757093. The next prime is 82757149. The reversal of 82757148 is 84175728.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82757149) 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, 3448203 + ... + 3448226.

It is an arithmetic number, because the mean of its divisors is an integer number (16091670).

Almost surely, 282757148 is an apocalyptic number.

It is an amenable number.

82757148 is an abundant number, since it is smaller than the sum of its proper divisors (110342892).

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

82757148 is a wasteful number, since it uses less digits than its factorization.

82757148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896436 (or 6896434 counting only the distinct ones).

The product of its digits is 125440, while the sum is 42.

The square root of 82757148 is about 9097.0955804586. The cubic root of 82757148 is about 435.7812147555.

It can be divided in two parts, 827 and 57148, that added together give a palindrome (57975).

The spelling of 82757148 in words is "eighty-two million, seven hundred fifty-seven thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 6896429 13792858 20689287 27585716 41378574 82757148