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72050234 = 236025117
BaseRepresentation
bin1000100101101…
…10011000111010
312000120112100012
410102312120322
5121421101414
611052141522
71533262664
oct422663072
9160515305
1072050234
1137741453
12201678a2
1311c08a99
1497d7534
1564d333e
hex44b663a

72050234 has 4 divisors (see below), whose sum is σ = 108075354. Its totient is φ = 36025116.

The previous prime is 72050227. The next prime is 72050249. The reversal of 72050234 is 43205027.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43205027 = 181123857.

It can be written as a sum of positive squares in only one way, i.e., 42315025 + 29735209 = 6505^2 + 5453^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18012557 + ... + 18012560.

Almost surely, 272050234 is an apocalyptic number.

72050234 is a deficient number, since it is larger than the sum of its proper divisors (36025120).

72050234 is a wasteful number, since it uses less digits than its factorization.

72050234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36025119.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 72050234 is about 8488.2409249502. The cubic root of 72050234 is about 416.1134929801.

It can be divided in two parts, 7205023 and 4, that added together give a palindrome (7205027).

The spelling of 72050234 in words is "seventy-two million, fifty thousand, two hundred thirty-four".

Divisors: 1 2 36025117 72050234