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89750473 = 831081331
BaseRepresentation
bin1010101100101…
…11101111001001
320020212210111121
411112113233021
5140434003343
612523355241
72136603121
oct526275711
9206783447
1089750473
114673094a
1226082b21
13157954b7
14bcc3c81
157d2caed
hex5597bc9

89750473 has 4 divisors (see below), whose sum is σ = 90831888. Its totient is φ = 88669060.

The previous prime is 89750467. The next prime is 89750513. The reversal of 89750473 is 37405798.

It is a happy number.

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: 37405798 = 218702899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-89750473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89750173) 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, 540583 + ... + 540748.

It is an arithmetic number, because the mean of its divisors is an integer number (22707972).

Almost surely, 289750473 is an apocalyptic number.

89750473 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

89750473 is a deficient number, since it is larger than the sum of its proper divisors (1081415).

89750473 is a wasteful number, since it uses less digits than its factorization.

89750473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081414.

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 89750473 is about 9473.6726247005. The cubic root of 89750473 is about 447.7259315011.

The spelling of 89750473 in words is "eighty-nine million, seven hundred fifty thousand, four hundred seventy-three".

Divisors: 1 83 1081331 89750473