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128934006 = 2321489001
BaseRepresentation
bin1111010111101…
…10000001110110
322222121112012120
413223312001312
5231001342011
620443300410
73123630615
oct753660166
9288545176
10128934006
1166864033
123721a706
1320934516
14131a387c
15b4bca06
hex7af6076

128934006 has 8 divisors (see below), whose sum is σ = 257868024. Its totient is φ = 42978000.

The previous prime is 128933993. The next prime is 128934007. The reversal of 128934006 is 600439821.

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

128934006 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128934007) 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, 10744495 + ... + 10744506.

It is an arithmetic number, because the mean of its divisors is an integer number (32233503).

Almost surely, 2128934006 is an apocalyptic number.

128934006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128934006 is a wasteful number, since it uses less digits than its factorization.

128934006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21489006.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 128934006 is about 11354.9110960853. The cubic root of 128934006 is about 505.1912565118.

The spelling of 128934006 in words is "one hundred twenty-eight million, nine hundred thirty-four thousand, six".

Divisors: 1 2 3 6 21489001 42978002 64467003 128934006