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80253299 = 747243931
BaseRepresentation
bin1001100100010…
…01000101110011
312121000021211102
410302021011303
5131021101144
611544035015
71663066430
oct462110563
9177007742
1080253299
1141334545
1222a62a6b
131381b779
14a930b87
1570a3b4e
hex4c89173

80253299 has 8 divisors (see below), whose sum is σ = 93669888. Its totient is φ = 67324680.

The previous prime is 80253263. The next prime is 80253301. The reversal of 80253299 is 99235208.

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

It is a de Polignac number, because none of the positive numbers 2k-80253299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80253599) 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, 121637 + ... + 122294.

It is an arithmetic number, because the mean of its divisors is an integer number (11708736).

Almost surely, 280253299 is an apocalyptic number.

80253299 is a deficient number, since it is larger than the sum of its proper divisors (13416589).

80253299 is a wasteful number, since it uses less digits than its factorization.

80253299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243985.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 80253299 is about 8958.4205639164. The cubic root of 80253299 is about 431.3412223463.

The spelling of 80253299 in words is "eighty million, two hundred fifty-three thousand, two hundred ninety-nine".

Divisors: 1 7 47 329 243931 1707517 11464757 80253299