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83082540 = 22359531453
BaseRepresentation
bin1001111001110…
…11110100101100
312210100000211010
410330323310230
5132232120130
612124425220
72026122102
oct474736454
9183300733
1083082540
1142997162
12239a8210
131429c488
14b069c72
1574620b0
hex4f3bd2c

83082540 has 48 divisors (see below), whose sum is σ = 233035488. Its totient is φ = 22116864.

The previous prime is 83082539. The next prime is 83082547. The reversal of 83082540 is 4528038.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 83082498 and 83082507.

It is not an unprimeable number, because it can be changed into a prime (83082547) 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, 56454 + ... + 57906.

It is an arithmetic number, because the mean of its divisors is an integer number (4854906).

Almost surely, 283082540 is an apocalyptic number.

It is an amenable number.

83082540 is an abundant number, since it is smaller than the sum of its proper divisors (149952948).

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

83082540 is a wasteful number, since it uses less digits than its factorization.

83082540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418 (or 2416 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 83082540 is about 9114.9624244974. The cubic root of 83082540 is about 436.3516157516.

The spelling of 83082540 in words is "eighty-three million, eighty-two thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 953 1453 1906 2859 2906 3812 4359 4765 5718 5812 7265 8718 9530 11436 14295 14530 17436 19060 21795 28590 29060 43590 57180 87180 1384709 2769418 4154127 5538836 6923545 8308254 13847090 16616508 20770635 27694180 41541270 83082540