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82951245 = 325131719439
BaseRepresentation
bin1001111000110…
…11110001001101
312210002100201100
410330123301031
5132213414440
612121533313
72025034236
oct474336115
9183070640
1082951245
1142907553
1223944239
13142547a0
14b03408d
157438230
hex4f1bc4d

82951245 has 96 divisors (see below), whose sum is σ = 172972800. Its totient is φ = 36329472.

The previous prime is 82951213. The next prime is 82951247. The reversal of 82951245 is 54215928.

It is not a de Polignac number, because 82951245 - 25 = 82951213 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82951247) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 188736 + ... + 189174.

It is an arithmetic number, because the mean of its divisors is an integer number (1801800).

Almost surely, 282951245 is an apocalyptic number.

82951245 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

82951245 is an abundant number, since it is smaller than the sum of its proper divisors (90021555).

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

82951245 is a wasteful number, since it uses less digits than its factorization.

82951245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 496 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 82951245 is about 9107.7574078365. The cubic root of 82951245 is about 436.1216396711.

The spelling of 82951245 in words is "eighty-two million, nine hundred fifty-one thousand, two hundred forty-five".

Divisors: 1 3 5 9 13 15 17 19 39 45 51 57 65 85 95 117 153 171 195 221 247 255 285 323 439 585 663 741 765 855 969 1105 1235 1317 1615 1989 2195 2223 2907 3315 3705 3951 4199 4845 5707 6585 7463 8341 9945 11115 12597 14535 17121 19755 20995 22389 25023 28535 37315 37791 41705 51363 62985 67167 75069 85605 97019 108433 111945 125115 141797 188955 256815 291057 325299 335835 375345 425391 485095 542165 708985 873171 975897 1276173 1455285 1626495 1843361 2126955 4365855 4879485 5530083 6380865 9216805 16590249 27650415 82951245