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80283450 = 23521323167
BaseRepresentation
bin1001100100100…
…00011100111010
312121001211012010
410302100130322
5131023032300
611544430350
71663253352
oct462203472
9177054163
1080283450
1141355165
1222a783b6
131382c400
14a93bb62
1570aca50
hex4c9073a

80283450 has 72 divisors (see below), whose sum is σ = 215664768. Its totient is φ = 19755840.

The previous prime is 80283443. The next prime is 80283461. The reversal of 80283450 is 5438208.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23767 + ... + 26933.

It is an arithmetic number, because the mean of its divisors is an integer number (2995344).

Almost surely, 280283450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80283450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107832384).

80283450 is an abundant number, since it is smaller than the sum of its proper divisors (135381318).

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

80283450 is a wasteful number, since it uses less digits than its factorization.

80283450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3208 (or 3190 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 80283450 is about 8960.1032360124. The cubic root of 80283450 is about 431.3952335874.

The spelling of 80283450 in words is "eighty million, two hundred eighty-three thousand, four hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 169 195 325 338 390 507 650 845 975 1014 1690 1950 2535 3167 4225 5070 6334 8450 9501 12675 15835 19002 25350 31670 41171 47505 79175 82342 95010 123513 158350 205855 237525 247026 411710 475050 535223 617565 1029275 1070446 1235130 1605669 2058550 2676115 3087825 3211338 5352230 6175650 8028345 13380575 16056690 26761150 40141725 80283450