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76938243 = 31723107613
BaseRepresentation
bin1001001010111…
…11110000000011
312100202212102120
410211133300003
5124144010433
611345015323
71622651514
oct445376003
9170685376
1076938243
113a47a928
1221924543
1312c2a8b5
14a30aa0b
156b4b7b3
hex495fc03

76938243 has 32 divisors (see below), whose sum is σ = 114587136. Its totient is φ = 45669888.

The previous prime is 76938229. The next prime is 76938259. The reversal of 76938243 is 34283967.

It is not a de Polignac number, because 76938243 - 210 = 76937219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 76938195 and 76938204.

It is not an unprimeable number, because it can be changed into a prime (76938293) 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 31 ways as a sum of consecutive naturals, for example, 125205 + ... + 125817.

It is an arithmetic number, because the mean of its divisors is an integer number (3580848).

Almost surely, 276938243 is an apocalyptic number.

76938243 is a deficient number, since it is larger than the sum of its proper divisors (37648893).

76938243 is a wasteful number, since it uses less digits than its factorization.

76938243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its digits is 217728, while the sum is 42.

The square root of 76938243 is about 8771.4447498687. Note that the first 3 decimals coincide. The cubic root of 76938243 is about 425.3183183877.

The spelling of 76938243 in words is "seventy-six million, nine hundred thirty-eight thousand, two hundred forty-three".

Divisors: 1 3 17 23 51 69 107 321 391 613 1173 1819 1839 2461 5457 7383 10421 14099 31263 41837 42297 65591 125511 196773 239683 719049 1115047 1508593 3345141 4525779 25646081 76938243