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42672693 = 373076619
BaseRepresentation
bin1010001011001…
…0001000110101
32222021222221010
42202302020311
541411011233
64122342433
71025466120
oct242621065
988258833
1042672693
11220a6698
121235aa19
138ac121b
14594b3b7
153b2db63
hex28b2235

42672693 has 16 divisors (see below), whose sum is σ = 65246720. Its totient is φ = 24301296.

The previous prime is 42672691. The next prime is 42672697. The reversal of 42672693 is 39627624.

It is not a de Polignac number, because 42672693 - 21 = 42672691 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42672691) 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 15 ways as a sum of consecutive naturals, for example, 3138 + ... + 9756.

It is an arithmetic number, because the mean of its divisors is an integer number (4077920).

Almost surely, 242672693 is an apocalyptic number.

It is an amenable number.

42672693 is a deficient number, since it is larger than the sum of its proper divisors (22574027).

42672693 is a wasteful number, since it uses less digits than its factorization.

42672693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6936.

The product of its digits is 108864, while the sum is 39.

The square root of 42672693 is about 6532.4339261871. The cubic root of 42672693 is about 349.4486366421.

It can be divided in two parts, 42672 and 693, that added together give a triangular number (43365 = T294).

The spelling of 42672693 in words is "forty-two million, six hundred seventy-two thousand, six hundred ninety-three".

Divisors: 1 3 7 21 307 921 2149 6447 6619 19857 46333 138999 2032033 6096099 14224231 42672693