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172827083 = 112131723281
BaseRepresentation
bin10100100110100…
…10000111001011
3110001012112012002
422103102013023
5323220431313
625052141215
74166002022
oct1223220713
9401175162
10172827083
1189613600
1249a6780b
1329a62060
1418d4b8b9
151028d058
hexa4d21cb

172827083 has 48 divisors (see below), whose sum is σ = 226836288. Its totient is φ = 130099200.

The previous prime is 172827071. The next prime is 172827089. The reversal of 172827083 is 380728271.

It is not a de Polignac number, because 172827083 - 212 = 172822987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172827089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 614903 + ... + 615183.

It is an arithmetic number, because the mean of its divisors is an integer number (4725756).

Almost surely, 2172827083 is an apocalyptic number.

172827083 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

172827083 is a deficient number, since it is larger than the sum of its proper divisors (54009205).

172827083 is a wasteful number, since it uses less digits than its factorization.

172827083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 172827083 is about 13146.3714765710. The cubic root of 172827083 is about 557.0197576223.

The spelling of 172827083 in words is "one hundred seventy-two million, eight hundred twenty-seven thousand, eighty-three".

Divisors: 1 11 13 17 23 121 143 187 221 253 281 299 391 1573 2057 2431 2783 3091 3289 3653 4301 4777 5083 6463 26741 34001 36179 40183 47311 52547 55913 62101 71093 84019 109871 442013 578017 615043 683111 782023 924209 1208581 1428323 7514221 10166299 13294391 15711553 172827083