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42210693 = 337223337
BaseRepresentation
bin1010000100000…
…1010110000101
32221102112012000
42201001112011
541301220233
64104415513
71021533150
oct241012605
987375160
1042210693
1121910578
1212177599
13898bb55
14586ac97
153a8bd13
hex2841585

42210693 has 16 divisors (see below), whose sum is σ = 71468160. Its totient is φ = 24120288.

The previous prime is 42210661. The next prime is 42210703. The reversal of 42210693 is 39601224.

It is not a de Polignac number, because 42210693 - 25 = 42210661 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210613) 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, 111480 + ... + 111857.

It is an arithmetic number, because the mean of its divisors is an integer number (4466760).

Almost surely, 242210693 is an apocalyptic number.

It is an amenable number.

42210693 is a deficient number, since it is larger than the sum of its proper divisors (29257467).

42210693 is a wasteful number, since it uses less digits than its factorization.

42210693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223353 (or 223347 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 42210693 is about 6496.9756810381. The cubic root of 42210693 is about 348.1829448310.

The spelling of 42210693 in words is "forty-two million, two hundred ten thousand, six hundred ninety-three".

Divisors: 1 3 7 9 21 27 63 189 223337 670011 1563359 2010033 4690077 6030099 14070231 42210693