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42751423 = 111332961
BaseRepresentation
bin1010001100010…
…1010110111111
32222102222221001
42203011112333
541421021143
64124151131
71026244501
oct243052677
988388831
1042751423
112214a860
12123984a7
138b1b000
14596bd71
153b4714d
hex28c55bf

42751423 has 32 divisors (see below), whose sum is σ = 53121600. Its totient is φ = 34070400.

The previous prime is 42751409. The next prime is 42751433. The reversal of 42751423 is 32415724.

It is not a de Polignac number, because 42751423 - 217 = 42620351 is a prime.

It is a Duffinian number.

Its product of digits (6720) is a multiple of the sum of its prime factors (140).

It is a junction number, because it is equal to n+sod(n) for n = 42751391 and 42751400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42751433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 700813 + ... + 700873.

It is an arithmetic number, because the mean of its divisors is an integer number (1660050).

Almost surely, 242751423 is an apocalyptic number.

42751423 is a deficient number, since it is larger than the sum of its proper divisors (10370177).

42751423 is a wasteful number, since it uses less digits than its factorization.

42751423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 114 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 42751423 is about 6538.4572339352. The cubic root of 42751423 is about 349.6634124691.

The spelling of 42751423 in words is "forty-two million, seven hundred fifty-one thousand, four hundred twenty-three".

Divisors: 1 11 13 29 61 143 169 319 377 671 793 1769 1859 2197 4147 4901 8723 10309 19459 22997 24167 53911 63713 113399 134017 252967 298961 700843 1474187 3288571 3886493 42751423