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83172093 = 347589873
BaseRepresentation
bin1001111010100…
…01101011111101
312210111120122220
410331101223331
5132243001333
612130355553
72026644144
oct475215375
9183446586
1083172093
1142a48474
1223a2bbb9
1314301174
14b09075b
15747d8b3
hex4f51afd

83172093 has 8 divisors (see below), whose sum is σ = 113255808. Its totient is φ = 54268224.

The previous prime is 83172053. The next prime is 83172137. The reversal of 83172093 is 39027138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 83172093 - 210 = 83171069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83172053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294796 + ... + 295077.

It is an arithmetic number, because the mean of its divisors is an integer number (14156976).

Almost surely, 283172093 is an apocalyptic number.

It is an amenable number.

83172093 is a deficient number, since it is larger than the sum of its proper divisors (30083715).

83172093 is a wasteful number, since it uses less digits than its factorization.

83172093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589923.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 83172093 is about 9119.8735188598. The cubic root of 83172093 is about 436.5083376681.

The spelling of 83172093 in words is "eighty-three million, one hundred seventy-two thousand, ninety-three".

Divisors: 1 3 47 141 589873 1769619 27724031 83172093