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42471427 = 791972729
BaseRepresentation
bin1010001000000…
…1000000000011
32221220202211211
42202001000003
541333041202
64114150551
71024000255
oct242010003
987822754
1042471427
1121a79459
1212282457
138a5072b
1458d7cd5
153ade1d7
hex2881003

42471427 has 8 divisors (see below), whose sum is σ = 43243200. Its totient is φ = 41705664.

The previous prime is 42471413. The next prime is 42471431. The reversal of 42471427 is 72417424.

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 42471427 - 211 = 42469379 is a prime.

It is a super-2 number, since 2×424714272 = 3607644222832658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42471437) 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, 14199 + ... + 16927.

It is an arithmetic number, because the mean of its divisors is an integer number (5405400).

Almost surely, 242471427 is an apocalyptic number.

42471427 is a deficient number, since it is larger than the sum of its proper divisors (771773).

42471427 is a wasteful number, since it uses less digits than its factorization.

42471427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005.

The product of its digits is 12544, while the sum is 31.

The square root of 42471427 is about 6517.0105876851. The cubic root of 42471427 is about 348.8983784718.

The spelling of 42471427 in words is "forty-two million, four hundred seventy-one thousand, four hundred twenty-seven".

Divisors: 1 79 197 2729 15563 215591 537613 42471427