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73738073 = 130356591
BaseRepresentation
bin1000110010100…
…10011101011001
312010202021121202
410121102131121
5122334104243
611152243545
71553522543
oct431223531
9163667552
1073738073
1138694562
12208405b5
131237a0c6
149b16693
1567184b8
hex4652759

73738073 has 4 divisors (see below), whose sum is σ = 73795968. Its totient is φ = 73680180.

The previous prime is 73738051. The next prime is 73738079. The reversal of 73738073 is 37083737.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 37083737 = 295712541.

It is a cyclic number.

It is not a de Polignac number, because 73738073 - 212 = 73733977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73738079) 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, 26993 + ... + 29598.

It is an arithmetic number, because the mean of its divisors is an integer number (18448992).

Almost surely, 273738073 is an apocalyptic number.

It is an amenable number.

73738073 is a deficient number, since it is larger than the sum of its proper divisors (57895).

73738073 is a wasteful number, since it uses less digits than its factorization.

73738073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57894.

The product of its (nonzero) digits is 74088, while the sum is 38.

The square root of 73738073 is about 8587.0875737936. The cubic root of 73738073 is about 419.3377185059.

The spelling of 73738073 in words is "seventy-three million, seven hundred thirty-eight thousand, seventy-three".

Divisors: 1 1303 56591 73738073