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42210809423 = 163881293941
BaseRepresentation
bin100111010011111101…
…011101011001001111
311000221202002021212222
4213103331131121033
51142421431400143
631220312045555
73023010650216
oct472375353117
9130852067788
1042210809423
11169a09a0972
1282203938bb
133c990ca013
14208606007d
151170b3b768
hex9d3f5d64f

42210809423 has 8 divisors (see below), whose sum is σ = 42518122416. Its totient is φ = 41904086400.

The previous prime is 42210809411. The next prime is 42210809441. The reversal of 42210809423 is 32490801224.

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 42210809423 - 210 = 42210808399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210809323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3368 + ... + 290573.

It is an arithmetic number, because the mean of its divisors is an integer number (5314765302).

Almost surely, 242210809423 is an apocalyptic number.

42210809423 is a deficient number, since it is larger than the sum of its proper divisors (307312993).

42210809423 is a wasteful number, since it uses less digits than its factorization.

42210809423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294985.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 42210809423 in words is "forty-two billion, two hundred ten million, eight hundred nine thousand, four hundred twenty-three".

Divisors: 1 163 881 143603 293941 47912383 258962021 42210809423