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42430125381 = 379725438191
BaseRepresentation
bin100111100001000010…
…000101010101000101
311001112000202200211020
4213201002011111011
51143344103003011
631254144501353
73031313054310
oct474102052505
9131460680736
1042430125381
1116aa3777226
12828191a859
134002688287
1420a722d977
15118500e006
hex9e1085545

42430125381 has 32 divisors (see below), whose sum is σ = 65355644928. Its totient is φ = 23983464960.

The previous prime is 42430125379. The next prime is 42430125383. The reversal of 42430125381 is 18352103424.

It is an interprime number because it is at equal distance from previous prime (42430125379) and next prime (42430125383).

It is not a de Polignac number, because 42430125381 - 21 = 42430125379 is a prime.

It is a super-2 number, since 2×424301253812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42430125383) 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, 5175996 + ... + 5184186.

It is an arithmetic number, because the mean of its divisors is an integer number (2042363904).

Almost surely, 242430125381 is an apocalyptic number.

It is an amenable number.

42430125381 is a deficient number, since it is larger than the sum of its proper divisors (22925519547).

42430125381 is a wasteful number, since it uses less digits than its factorization.

42430125381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10841.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 42430125381 in words is "forty-two billion, four hundred thirty million, one hundred twenty-five thousand, three hundred eighty-one".

Divisors: 1 3 7 21 97 291 679 2037 2543 7629 8191 17801 24573 53403 57337 172011 246671 740013 794527 1726697 2383581 5180091 5561689 16685067 20829713 62489139 145807991 437423973 2020482161 6061446483 14143375127 42430125381