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28970098 = 219762371
BaseRepresentation
bin110111010000…
…0110001110010
32000111211111121
41232200301302
524404020343
62512532454
7501145633
oct156406162
960454447
1028970098
1115397733
12985112a
136004291
143bc188a
152823aed
hex1ba0c72

28970098 has 8 divisors (see below), whose sum is σ = 45742320. Its totient is φ = 13722660.

The previous prime is 28970093. The next prime is 28970099. The reversal of 28970098 is 89007982.

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

It is not an unprimeable number, because it can be changed into a prime (28970093) 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, 381148 + ... + 381223.

It is an arithmetic number, because the mean of its divisors is an integer number (5717790).

Almost surely, 228970098 is an apocalyptic number.

28970098 is a deficient number, since it is larger than the sum of its proper divisors (16772222).

28970098 is a wasteful number, since it uses less digits than its factorization.

28970098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762392.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 28970098 is about 5382.3877600931. The cubic root of 28970098 is about 307.1260503719.

The spelling of 28970098 in words is "twenty-eight million, nine hundred seventy thousand, ninety-eight".

Divisors: 1 2 19 38 762371 1524742 14485049 28970098