Search a number
-
+
73245629 = 531381993
BaseRepresentation
bin1000101110110…
…10001110111101
312002211021010002
410113122032331
5122222330004
611133524045
71546402052
oct427321675
9162737102
1073245629
1138388586
1220643625
1312236c12
149a29029
15666c61e
hex45da3bd

73245629 has 4 divisors (see below), whose sum is σ = 74627676. Its totient is φ = 71863584.

The previous prime is 73245617. The next prime is 73245631. The reversal of 73245629 is 92654237.

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 37185604 + 36060025 = 6098^2 + 6005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-73245629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73245592 and 73245601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73245649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690944 + ... + 691049.

It is an arithmetic number, because the mean of its divisors is an integer number (18656919).

Almost surely, 273245629 is an apocalyptic number.

It is an amenable number.

73245629 is a deficient number, since it is larger than the sum of its proper divisors (1382047).

73245629 is a wasteful number, since it uses less digits than its factorization.

73245629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382046.

The product of its digits is 90720, while the sum is 38.

The square root of 73245629 is about 8558.3660239557. The cubic root of 73245629 is about 418.4021468820.

The spelling of 73245629 in words is "seventy-three million, two hundred forty-five thousand, six hundred twenty-nine".

Divisors: 1 53 1381993 73245629