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82996975 = 5217401487
BaseRepresentation
bin1001111001001…
…10111011101111
312210011200110001
410330212323233
5132221400400
612122525131
72025314455
oct474467357
9183150401
1082996975
1142938946
12239667a7
131426c549
14b0469d5
157446a6a
hex4f26eef

82996975 has 24 divisors (see below), whose sum is σ = 109466208. Its totient is φ = 62208000.

The previous prime is 82996973. The next prime is 82996981. The reversal of 82996975 is 57969928.

It is not a de Polignac number, because 82996975 - 21 = 82996973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82996973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170182 + ... + 170668.

It is an arithmetic number, because the mean of its divisors is an integer number (4561092).

Almost surely, 282996975 is an apocalyptic number.

82996975 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

82996975 is the 4870-th nonagonal number.

82996975 is a deficient number, since it is larger than the sum of its proper divisors (26469233).

82996975 is a wasteful number, since it uses less digits than its factorization.

82996975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915 (or 910 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The square root of 82996975 is about 9110.2675591884. The cubic root of 82996975 is about 436.2017677784.

The spelling of 82996975 in words is "eighty-two million, nine hundred ninety-six thousand, nine hundred seventy-five".

Divisors: 1 5 17 25 85 401 425 487 2005 2435 6817 8279 10025 12175 34085 41395 170425 195287 206975 976435 3319879 4882175 16599395 82996975