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80694530 = 25729127313
BaseRepresentation
bin1001100111101…
…00110100000010
312121211201002022
410303310310002
5131124211110
612001321442
71666615010
oct463646402
9177751068
1080694530
1141605aa4
1223036282
1313944557
14aa078b0
15713e755
hex4cf4d02

80694530 has 64 divisors (see below), whose sum is σ = 173629440. Its totient is φ = 26417664.

The previous prime is 80694527. The next prime is 80694533. The reversal of 80694530 is 3549608.

It is an interprime number because it is at equal distance from previous prime (80694527) and next prime (80694533).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (80694533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 257654 + ... + 257966.

It is an arithmetic number, because the mean of its divisors is an integer number (2712960).

Almost surely, 280694530 is an apocalyptic number.

80694530 is an abundant number, since it is smaller than the sum of its proper divisors (92934910).

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

80694530 is a wasteful number, since it uses less digits than its factorization.

80694530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 80694530 is about 8983.0134142169. The cubic root of 80694530 is about 432.1302797800.

The spelling of 80694530 in words is "eighty million, six hundred ninety-four thousand, five hundred thirty".

Divisors: 1 2 5 7 10 14 29 35 58 70 127 145 203 254 290 313 406 626 635 889 1015 1270 1565 1778 2030 2191 3130 3683 4382 4445 7366 8890 9077 10955 18154 18415 21910 25781 36830 39751 45385 51562 63539 79502 90770 127078 128905 198755 257810 278257 317695 397510 556514 635390 1152779 1391285 2305558 2782570 5763895 8069453 11527790 16138906 40347265 80694530