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42869405 = 547182423
BaseRepresentation
bin1010001110001…
…0001010011101
32222122222202202
42203202022131
541433310110
64130501245
71030245455
oct243421235
988588682
1042869405
1122220467
1212434825
138b5c917
14599cd65
153b6c0a5
hex28e229d

42869405 has 8 divisors (see below), whose sum is σ = 52538112. Its totient is φ = 33565648.

The previous prime is 42869389. The next prime is 42869423. The reversal of 42869405 is 50496824.

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 42869405 - 24 = 42869389 is a prime.

It is a super-3 number, since 3×428694053 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90977 + ... + 91446.

It is an arithmetic number, because the mean of its divisors is an integer number (6567264).

Almost surely, 242869405 is an apocalyptic number.

It is an amenable number.

42869405 is a deficient number, since it is larger than the sum of its proper divisors (9668707).

42869405 is a wasteful number, since it uses less digits than its factorization.

42869405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182475.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 42869405 is about 6547.4731767301. The cubic root of 42869405 is about 349.9847748479.

The spelling of 42869405 in words is "forty-two million, eight hundred sixty-nine thousand, four hundred five".

Divisors: 1 5 47 235 182423 912115 8573881 42869405