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80800252 = 22132177989
BaseRepresentation
bin1001101000011…
…10100111111100
312122001002002221
410310032213330
5131141102002
612003455124
72000535151
oct464164774
9178032087
1080800252
1141678475
12230874a4
1313980700
14aa34228
157160c37
hex4d0e9fc

80800252 has 72 divisors (see below), whose sum is σ = 166017600. Its totient is φ = 34265088.

The previous prime is 80800231. The next prime is 80800253. The reversal of 80800252 is 25200808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80800253) 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, 907824 + ... + 907912.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 280800252 is an apocalyptic number.

It is an amenable number.

80800252 is an abundant number, since it is smaller than the sum of its proper divisors (85217348).

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

80800252 is a wasteful number, since it uses less digits than its factorization.

80800252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 200 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

The square root of 80800252 is about 8988.8960390028. The cubic root of 80800252 is about 432.3189160285.

The spelling of 80800252 in words is "eighty million, eight hundred thousand, two hundred fifty-two".

Divisors: 1 2 4 13 17 26 34 52 68 79 89 158 169 178 221 316 338 356 442 676 884 1027 1157 1343 1513 2054 2314 2686 2873 3026 4108 4628 5372 5746 6052 7031 11492 13351 14062 15041 17459 19669 26702 28124 30082 34918 39338 53404 60164 69836 78676 91403 119527 182806 226967 239054 255697 365612 453934 478108 511394 907868 1022788 1188239 1553851 2376478 3107702 4752956 6215404 20200063 40400126 80800252