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73675997 = 137537781
BaseRepresentation
bin1000110010000…
…11010011011101
312010122010110122
410121003103131
5122330112442
611151044325
71553143553
oct431032335
9163563418
1073675997
113865195a
12208106a5
1312357a85
149adbbd3
156704dd2
hex46434dd

73675997 has 4 divisors (see below), whose sum is σ = 74213916. Its totient is φ = 73138080.

The previous prime is 73675993. The next prime is 73675999. The reversal of 73675997 is 79957637.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79957637 = 233476419.

It can be written as a sum of positive squares in 2 ways, for example, as 45010681 + 28665316 = 6709^2 + 5354^2 .

It is a cyclic number.

It is not a de Polignac number, because 73675997 - 22 = 73675993 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 (73675993) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 268754 + ... + 269027.

It is an arithmetic number, because the mean of its divisors is an integer number (18553479).

Almost surely, 273675997 is an apocalyptic number.

It is an amenable number.

73675997 is a deficient number, since it is larger than the sum of its proper divisors (537919).

73675997 is a wasteful number, since it uses less digits than its factorization.

73675997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537918.

The product of its digits is 2500470, while the sum is 53.

The square root of 73675997 is about 8583.4723160269. The cubic root of 73675997 is about 419.2200130692.

The spelling of 73675997 in words is "seventy-three million, six hundred seventy-five thousand, nine hundred ninety-seven".

Divisors: 1 137 537781 73675997