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80508253 = 713998221
BaseRepresentation
bin1001100110001…
…11010101011101
312121111020120011
410303013111131
5131102231003
611553323221
71665210640
oct463072535
9177436504
1080508253
1141499051
1222b66511
13138aa827
14a999a57
15710446d
hex4cc755d

80508253 has 8 divisors (see below), whose sum is σ = 92086400. Its totient is φ = 68949360.

The previous prime is 80508247. The next prime is 80508283. The reversal of 80508253 is 35280508.

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

It is a cyclic number.

It is not a de Polignac number, because 80508253 - 217 = 80377181 is a prime.

It is a super-2 number, since 2×805082532 = 12963157602224018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80508283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5683 + ... + 13903.

It is an arithmetic number, because the mean of its divisors is an integer number (11510800).

Almost surely, 280508253 is an apocalyptic number.

It is an amenable number.

80508253 is a deficient number, since it is larger than the sum of its proper divisors (11578147).

80508253 is a wasteful number, since it uses less digits than its factorization.

80508253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9627.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 80508253 is about 8972.6391323846. The cubic root of 80508253 is about 431.7975106270.

The spelling of 80508253 in words is "eighty million, five hundred eight thousand, two hundred fifty-three".

Divisors: 1 7 1399 8221 9793 57547 11501179 80508253