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80275629 = 373822649
BaseRepresentation
bin1001100100011…
…10100010101101
312121001102110110
410302032202231
5131022310004
611544330233
71663221510
oct462164255
9177042413
1080275629
114134a2a5
1222a73979
1313828995
14a938d77
1570aa589
hex4c8e8ad

80275629 has 8 divisors (see below), whose sum is σ = 122324800. Its totient is φ = 45871776.

The previous prime is 80275609. The next prime is 80275661. The reversal of 80275629 is 92657208.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 80275629 - 27 = 80275501 is a prime.

It is a super-2 number, since 2×802756292 = 12888353222691282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80275609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1911304 + ... + 1911345.

It is an arithmetic number, because the mean of its divisors is an integer number (15290600).

Almost surely, 280275629 is an apocalyptic number.

It is an amenable number.

80275629 is a deficient number, since it is larger than the sum of its proper divisors (42049171).

80275629 is a wasteful number, since it uses less digits than its factorization.

80275629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822659.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 80275629 is about 8959.6667906792. Note that the first 3 decimals coincide. The cubic root of 80275629 is about 431.3812246740.

The spelling of 80275629 in words is "eighty million, two hundred seventy-five thousand, six hundred twenty-nine".

Divisors: 1 3 7 21 3822649 11467947 26758543 80275629