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79238242 = 239619121
BaseRepresentation
bin1001011100100…
…01010001100010
312112002201102201
410232101101202
5130241110432
611510203414
71651341166
oct456212142
9175081381
1079238242
1140800956
122265356a
1313554745
14a748ca6
156e52ee7
hex4b91462

79238242 has 4 divisors (see below), whose sum is σ = 118857366. Its totient is φ = 39619120.

The previous prime is 79238231. The next prime is 79238249. The reversal of 79238242 is 24283297.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42889401 + 36348841 = 6549^2 + 6029^2 .

It is not an unprimeable number, because it can be changed into a prime (79238249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19809559 + ... + 19809562.

Almost surely, 279238242 is an apocalyptic number.

79238242 is a deficient number, since it is larger than the sum of its proper divisors (39619124).

79238242 is a wasteful number, since it uses less digits than its factorization.

79238242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39619123.

The product of its digits is 48384, while the sum is 37.

The square root of 79238242 is about 8901.5864878122. The cubic root of 79238242 is about 429.5149424949.

The spelling of 79238242 in words is "seventy-nine million, two hundred thirty-eight thousand, two hundred forty-two".

Divisors: 1 2 39619121 79238242