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32670421 = 713933577
BaseRepresentation
bin111110010100…
…0001011010101
32021110211101121
41330220023111
531330423141
63124123541
7544460020
oct174501325
967424347
1032670421
1117494853
12ab365b1
1369cb614
1444a61b7
152d051d1
hex1f282d5

32670421 has 8 divisors (see below), whose sum is σ = 37607360. Its totient is φ = 27800928.

The previous prime is 32670409. The next prime is 32670431. The reversal of 32670421 is 12407623.

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

It is a cyclic number.

It is not a de Polignac number, because 32670421 - 27 = 32670293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32670401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15816 + ... + 17761.

It is an arithmetic number, because the mean of its divisors is an integer number (4700920).

Almost surely, 232670421 is an apocalyptic number.

It is an amenable number.

32670421 is a deficient number, since it is larger than the sum of its proper divisors (4936939).

32670421 is a wasteful number, since it uses less digits than its factorization.

32670421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33723.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 32670421 is about 5715.8044928076. The cubic root of 32670421 is about 319.6820442060.

The spelling of 32670421 in words is "thirty-two million, six hundred seventy thousand, four hundred twenty-one".

Divisors: 1 7 139 973 33577 235039 4667203 32670421