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42702901 = 1011572693
BaseRepresentation
bin1010001011100…
…1100000110101
32222100112100221
42202321200311
541412443101
64123134341
71025653153
oct242714065
988315327
1042702901
112211735a
12123743b1
138b01bb7
1459583d3
153b37aa1
hex28b9835

42702901 has 8 divisors (see below), whose sum is σ = 43416504. Its totient is φ = 41995200.

The previous prime is 42702889. The next prime is 42702917. The reversal of 42702901 is 10920724.

It can be written as a sum of positive squares in 4 ways, for example, as 11062276 + 31640625 = 3326^2 + 5625^2 .

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 42702901 - 29 = 42702389 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 (42702941) 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, 14511 + ... + 17203.

It is an arithmetic number, because the mean of its divisors is an integer number (5427063).

Almost surely, 242702901 is an apocalyptic number.

It is an amenable number.

42702901 is a deficient number, since it is larger than the sum of its proper divisors (713603).

42702901 is a wasteful number, since it uses less digits than its factorization.

42702901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 42702901 is about 6534.7456721742. The cubic root of 42702901 is about 349.5310754241.

The spelling of 42702901 in words is "forty-two million, seven hundred two thousand, nine hundred one".

Divisors: 1 101 157 2693 15857 271993 422801 42702901