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128462952 = 23319281717
BaseRepresentation
bin1111010100000…
…11000001101000
322221201121001010
413222003001220
5230341303302
620425223520
73116626362
oct752030150
9287647033
10128462952
1166572132
1237031ba0
13207caca7
14130bdd32
15b42816c
hex7a83068

128462952 has 32 divisors (see below), whose sum is σ = 338061600. Its totient is φ = 40567104.

The previous prime is 128462951. The next prime is 128462959. The reversal of 128462952 is 259264821.

It is a self number, because there is not a number n which added to its sum of digits gives 128462952.

It is not an unprimeable number, because it can be changed into a prime (128462951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140403 + ... + 141314.

It is an arithmetic number, because the mean of its divisors is an integer number (10564425).

Almost surely, 2128462952 is an apocalyptic number.

128462952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128462952 is an abundant number, since it is smaller than the sum of its proper divisors (209598648).

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

128462952 is a wasteful number, since it uses less digits than its factorization.

128462952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281745 (or 281741 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 128462952 is about 11334.1498137267. The cubic root of 128462952 is about 504.5752753445.

The spelling of 128462952 in words is "one hundred twenty-eight million, four hundred sixty-two thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 281717 563434 845151 1126868 1690302 2253736 3380604 5352623 6761208 10705246 16057869 21410492 32115738 42820984 64231476 128462952