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42790651 is a prime number
BaseRepresentation
bin1010001100111…
…0111011111011
32222111222201221
42203032323323
541423300101
64125052511
71026500041
oct243167373
988458657
1042790651
1122177282
12123b7137
138b32b17
14597c391
153b53aa1
hex28ceefb

42790651 has 2 divisors, whose sum is σ = 42790652. Its totient is φ = 42790650.

The previous prime is 42790621. The next prime is 42790673. The reversal of 42790651 is 15609724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42790651 - 27 = 42790523 is a prime.

It is not a weakly prime, because it can be changed into another prime (42790621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21395325 + 21395326.

It is an arithmetic number, because the mean of its divisors is an integer number (21395326).

Almost surely, 242790651 is an apocalyptic number.

42790651 is a deficient number, since it is larger than the sum of its proper divisors (1).

42790651 is an equidigital number, since it uses as much as digits as its factorization.

42790651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 42790651 is about 6541.4563363214. The cubic root of 42790651 is about 349.7703282328.

The spelling of 42790651 in words is "forty-two million, seven hundred ninety thousand, six hundred fifty-one".