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42471465 = 3522312697
BaseRepresentation
bin1010001000000…
…1000000101001
32221220202220020
42202001000221
541333041330
64114151053
71024000341
oct242010051
987822806
1042471465
1121a79493
1212282489
138a5075a
1458d7d21
153ade210
hex2881029

42471465 has 16 divisors (see below), whose sum is σ = 68264448. Its totient is φ = 22548096.

The previous prime is 42471463. The next prime is 42471511. The reversal of 42471465 is 56417424.

It is not a de Polignac number, because 42471465 - 21 = 42471463 is a prime.

It is a super-3 number, since 3×424714653 (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42471461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3004 + ... + 9693.

It is an arithmetic number, because the mean of its divisors is an integer number (4266528).

Almost surely, 242471465 is an apocalyptic number.

It is an amenable number.

42471465 is a deficient number, since it is larger than the sum of its proper divisors (25792983).

42471465 is a wasteful number, since it uses less digits than its factorization.

42471465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12928.

The product of its digits is 26880, while the sum is 33.

The square root of 42471465 is about 6517.0135031316. The cubic root of 42471465 is about 348.8984825272.

Adding to 42471465 its reverse (56417424), we get a palindrome (98888889).

The spelling of 42471465 in words is "forty-two million, four hundred seventy-one thousand, four hundred sixty-five".

Divisors: 1 3 5 15 223 669 1115 3345 12697 38091 63485 190455 2831431 8494293 14157155 42471465