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42485619 = 3117118133
BaseRepresentation
bin1010001000010…
…0011101110011
32221221111022110
42202010131303
541334014434
64114340403
71024056531
oct242043563
987844273
1042485619
1121a89090
121228a703
138a57027
1458dd151
153ae34e9
hex2884773

42485619 has 16 divisors (see below), whose sum is σ = 62671104. Its totient is φ = 25384800.

The previous prime is 42485617. The next prime is 42485621. The reversal of 42485619 is 91658424.

It is an interprime number because it is at equal distance from previous prime (42485617) and next prime (42485621).

It is not a de Polignac number, because 42485619 - 21 = 42485617 is a prime.

It is a super-2 number, since 2×424856192 = 3610055643626322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42485617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6724 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (3916944).

Almost surely, 242485619 is an apocalyptic number.

42485619 is a deficient number, since it is larger than the sum of its proper divisors (20185485).

42485619 is a wasteful number, since it uses less digits than its factorization.

42485619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18218.

The product of its digits is 69120, while the sum is 39.

The square root of 42485619 is about 6518.0993395314. The cubic root of 42485619 is about 348.9372360812.

The spelling of 42485619 in words is "forty-two million, four hundred eighty-five thousand, six hundred nineteen".

Divisors: 1 3 11 33 71 213 781 2343 18133 54399 199463 598389 1287443 3862329 14161873 42485619