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42915803 = 717360637
BaseRepresentation
bin1010001110110…
…1011111011011
32222202100102012
42203231133123
541441301203
64131500135
71030530650
oct243553733
988670365
1042915803
1122252307
121245764b
138b77a88
1459b1c27
153b7abd8
hex28ed7db

42915803 has 8 divisors (see below), whose sum is σ = 51931872. Its totient is φ = 34621056.

The previous prime is 42915799. The next prime is 42915839. The reversal of 42915803 is 30851924.

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 42915803 - 22 = 42915799 is a prime.

It is a super-2 number, since 2×429158032 = 3683532294269618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42915803.

It is not an unprimeable number, because it can be changed into a prime (42915883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180200 + ... + 180437.

It is an arithmetic number, because the mean of its divisors is an integer number (6491484).

Almost surely, 242915803 is an apocalyptic number.

42915803 is a deficient number, since it is larger than the sum of its proper divisors (9016069).

42915803 is a wasteful number, since it uses less digits than its factorization.

42915803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360661.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 42915803 is about 6551.0154174754. The cubic root of 42915803 is about 350.1109933691.

The spelling of 42915803 in words is "forty-two million, nine hundred fifteen thousand, eight hundred three".

Divisors: 1 7 17 119 360637 2524459 6130829 42915803