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82130088 = 23329197599
BaseRepresentation
bin1001110010100…
…11010010101000
312201112122022010
410321103102220
5132011130323
612052155520
72015044215
oct471232250
9181478263
1082130088
11423a6607
1223608ba0
1314027ab1
14ac9cb0c
157324c93
hex4e534a8

82130088 has 64 divisors (see below), whose sum is σ = 213840000. Its totient is φ = 26254592.

The previous prime is 82130051. The next prime is 82130089. The reversal of 82130088 is 88003128.

It is not an unprimeable number, because it can be changed into a prime (82130089) 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, 136813 + ... + 137411.

It is an arithmetic number, because the mean of its divisors is an integer number (3341250).

Almost surely, 282130088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82130088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106920000).

82130088 is an abundant number, since it is smaller than the sum of its proper divisors (131709912).

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

82130088 is a wasteful number, since it uses less digits than its factorization.

82130088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 82130088 is about 9062.5651997655. The cubic root of 82130088 is about 434.6777690257.

The spelling of 82130088 in words is "eighty-two million, one hundred thirty thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 12 24 29 58 87 116 174 197 232 348 394 591 599 696 788 1182 1198 1576 1797 2364 2396 3594 4728 4792 5713 7188 11426 14376 17139 17371 22852 34278 34742 45704 52113 68556 69484 104226 118003 137112 138968 208452 236006 354009 416904 472012 708018 944024 1416036 2832072 3422087 6844174 10266261 13688348 20532522 27376696 41065044 82130088