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128062628 = 2253604069
BaseRepresentation
bin1111010001000…
…01010010100100
322220222020220022
413220201102210
5230241001003
620412454312
73113341301
oct750412244
9286866808
10128062628
1166319391
1236a7a398
13206baa05
14130180a8
15b399738
hex7a214a4

128062628 has 12 divisors (see below), whose sum is σ = 228338460. Its totient is φ = 62823072.

The previous prime is 128062621. The next prime is 128062631. The reversal of 128062628 is 826260821.

It can be written as a sum of positive squares in 2 ways, for example, as 47637604 + 80425024 = 6902^2 + 8968^2 .

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (128062621) 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 3 ways as a sum of consecutive naturals, for example, 301823 + ... + 302246.

It is an arithmetic number, because the mean of its divisors is an integer number (19028205).

Almost surely, 2128062628 is an apocalyptic number.

It is an amenable number.

128062628 is a deficient number, since it is larger than the sum of its proper divisors (100275832).

128062628 is a wasteful number, since it uses less digits than its factorization.

128062628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604126 (or 604124 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 128062628 is about 11316.4759532285. The cubic root of 128062628 is about 504.0506006557.

The spelling of 128062628 in words is "one hundred twenty-eight million, sixty-two thousand, six hundred twenty-eight".

Divisors: 1 2 4 53 106 212 604069 1208138 2416276 32015657 64031314 128062628