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42469997 = 1910920507
BaseRepresentation
bin1010001000000…
…0101001101101
32221220200212212
42202000221231
541333014442
64114140205
71023663143
oct242005155
987820785
1042469997
1121a78379
1212281665
138a4cb9b
1458d7593
153adda82
hex2880a6d

42469997 has 8 divisors (see below), whose sum is σ = 45117600. Its totient is φ = 39863664.

The previous prime is 42469991. The next prime is 42470003. The reversal of 42469997 is 79996424.

It is an interprime number because it is at equal distance from previous prime (42469991) and next prime (42470003).

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 42469997 - 24 = 42469981 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 (42469991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8183 + ... + 12324.

It is an arithmetic number, because the mean of its divisors is an integer number (5639700).

Almost surely, 242469997 is an apocalyptic number.

It is an amenable number.

42469997 is a deficient number, since it is larger than the sum of its proper divisors (2647603).

42469997 is a wasteful number, since it uses less digits than its factorization.

42469997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20635.

The product of its digits is 979776, while the sum is 50.

The square root of 42469997 is about 6516.9008738817. The cubic root of 42469997 is about 348.8944626606.

The spelling of 42469997 in words is "forty-two million, four hundred sixty-nine thousand, nine hundred ninety-seven".

Divisors: 1 19 109 2071 20507 389633 2235263 42469997