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80828125 = 567739
BaseRepresentation
bin1001101000101…
…01011011011101
312122002111100021
410310111123131
5131143000000
612004232141
72001012340
oct464253335
9178074307
1080828125
1141697404
122309b651
13139902c1
14aa40457
15716911a
hex4d156dd

80828125 has 28 divisors (see below), whose sum is σ = 115623520. Its totient is φ = 55350000.

The previous prime is 80828119. The next prime is 80828131. The reversal of 80828125 is 52182808.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80828119) and next prime (80828131).

It is not a de Polignac number, because 80828125 - 29 = 80827613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 109006 + ... + 109744.

Almost surely, 280828125 is an apocalyptic number.

It is an amenable number.

80828125 is a deficient number, since it is larger than the sum of its proper divisors (34795395).

80828125 is an frugal number, since it uses more digits than its factorization.

80828125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 751 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 34.

The square root of 80828125 is about 8990.4463181758. The cubic root of 80828125 is about 432.3686214833.

The spelling of 80828125 in words is "eighty million, eight hundred twenty-eight thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 625 739 875 3125 3695 4375 5173 15625 18475 21875 25865 92375 109375 129325 461875 646625 2309375 3233125 11546875 16165625 80828125