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32428930 = 258389439
BaseRepresentation
bin111101110110…
…1001110000010
32021000120010111
41323231032002
531300211210
63115021534
7542432662
oct173551602
967016114
1032428930
111733a376
12aa3a8aa
136945721
1444421a2
152ca888a
hex1eed382

32428930 has 32 divisors (see below), whose sum is σ = 59875200. Its totient is φ = 12642432.

The previous prime is 32428927. The next prime is 32428939. The reversal of 32428930 is 3982423.

It is a junction number, because it is equal to n+sod(n) for n = 32428892 and 32428901.

It is not an unprimeable number, because it can be changed into a prime (32428939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73651 + ... + 74089.

It is an arithmetic number, because the mean of its divisors is an integer number (1871100).

Almost surely, 232428930 is an apocalyptic number.

32428930 is a deficient number, since it is larger than the sum of its proper divisors (27446270).

32428930 is a wasteful number, since it uses less digits than its factorization.

32428930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 32428930 is about 5694.6404627509. The cubic root of 32428930 is about 318.8924274427.

The spelling of 32428930 in words is "thirty-two million, four hundred twenty-eight thousand, nine hundred thirty".

Divisors: 1 2 5 10 83 89 166 178 415 439 445 830 878 890 2195 4390 7387 14774 36437 36935 39071 72874 73870 78142 182185 195355 364370 390710 3242893 6485786 16214465 32428930