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73127089 = 771147137
BaseRepresentation
bin1000101101111…
…01010010110001
312002121020111201
410112331102301
5122210031324
611131211201
71545366340
oct426752261
9162536451
1073127089
1138307512
12205a6b01
13121c4c89
1499d7b57
156647444
hex45bd4b1

73127089 has 8 divisors (see below), whose sum is σ = 84751488. Its totient is φ = 61797120.

The previous prime is 73127071. The next prime is 73127101. The reversal of 73127089 is 98072137.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 73127089 - 25 = 73127057 is a prime.

It is a super-2 number, since 2×731270892 = 10695142291227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73127389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73072 + ... + 74065.

It is an arithmetic number, because the mean of its divisors is an integer number (10593936).

Almost surely, 273127089 is an apocalyptic number.

It is an amenable number.

73127089 is a deficient number, since it is larger than the sum of its proper divisors (11624399).

73127089 is a wasteful number, since it uses less digits than its factorization.

73127089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147215.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 73127089 is about 8551.4378323180. The cubic root of 73127089 is about 418.1763123795.

The spelling of 73127089 in words is "seventy-three million, one hundred twenty-seven thousand, eighty-nine".

Divisors: 1 7 71 497 147137 1029959 10446727 73127089