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80628398 = 2283142453
BaseRepresentation
bin1001100111001…
…00101010101110
312121201100100222
410303210222232
5131120102043
612000051342
71666221134
oct463445256
9177640328
1080628398
1141570344
1223003b52
1313920416
14a9cb754
157129d68
hex4ce4aae

80628398 has 8 divisors (see below), whose sum is σ = 121370808. Its totient is φ = 40171464.

The previous prime is 80628391. The next prime is 80628407. The reversal of 80628398 is 89382608.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80628391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70661 + ... + 71792.

It is an arithmetic number, because the mean of its divisors is an integer number (15171351).

Almost surely, 280628398 is an apocalyptic number.

80628398 is a deficient number, since it is larger than the sum of its proper divisors (40742410).

80628398 is a wasteful number, since it uses less digits than its factorization.

80628398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142738.

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 80628398 is about 8979.3317123269. The cubic root of 80628398 is about 432.0121988725.

The spelling of 80628398 in words is "eighty million, six hundred twenty-eight thousand, three hundred ninety-eight".

Divisors: 1 2 283 566 142453 284906 40314199 80628398