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42719008 = 251334969
BaseRepresentation
bin1010001011110…
…1011100100000
32222101100110111
42202331130200
541414002013
64123341104
71026051133
oct242753440
988340414
1042719008
1122128472
1212381794
138b09327
14596021a
153b3c73d
hex28bd720

42719008 has 12 divisors (see below), whose sum is σ = 84103110. Its totient is φ = 21359488.

The previous prime is 42719003. The next prime is 42719029. The reversal of 42719008 is 80091724.

It can be written as a sum of positive squares in only one way, i.e., 42667024 + 51984 = 6532^2 + 228^2 .

It is not an unprimeable number, because it can be changed into a prime (42719003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667453 + ... + 667516.

Almost surely, 242719008 is an apocalyptic number.

It is an amenable number.

42719008 is a deficient number, since it is larger than the sum of its proper divisors (41384102).

42719008 is a wasteful number, since it uses less digits than its factorization.

42719008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334979 (or 1334971 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 42719008 is about 6535.9779681391. The cubic root of 42719008 is about 349.5750161494.

The spelling of 42719008 in words is "forty-two million, seven hundred nineteen thousand, eight".

Divisors: 1 2 4 8 16 32 1334969 2669938 5339876 10679752 21359504 42719008