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72024301 = 121359377
BaseRepresentation
bin1000100101100…
…00000011101101
312000112012202201
410102300003231
5121414234201
611051421501
71533124246
oct422600355
9160465681
1072024301
1137723a18
1220154891
1311bca03b
1497cbccd
1564ca801
hex44b00ed

72024301 has 4 divisors (see below), whose sum is σ = 72084892. Its totient is φ = 71963712.

The previous prime is 72024289. The next prime is 72024341. The reversal of 72024301 is 10342027.

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

It can be written as a sum of positive squares in 2 ways, for example, as 32661225 + 39363076 = 5715^2 + 6274^2 .

It is a cyclic number.

It is not a de Polignac number, because 72024301 - 217 = 71893229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72024341) 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 in 3 ways as a sum of consecutive naturals, for example, 28476 + ... + 30901.

It is an arithmetic number, because the mean of its divisors is an integer number (18021223).

Almost surely, 272024301 is an apocalyptic number.

It is an amenable number.

72024301 is a deficient number, since it is larger than the sum of its proper divisors (60591).

72024301 is a wasteful number, since it uses less digits than its factorization.

72024301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60590.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 72024301 is about 8486.7132035907. The cubic root of 72024301 is about 416.0635631577.

Adding to 72024301 its reverse (10342027), we get a palindrome (82366328).

The spelling of 72024301 in words is "seventy-two million, twenty-four thousand, three hundred one".

Divisors: 1 1213 59377 72024301