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94438945 = 518887789
BaseRepresentation
bin1011010000100…
…00011000100001
320120200222212201
411220100120201
5143134021240
613212053201
72224501126
oct550203041
9216628781
1094438945
1149343417
1227764201
1316747543
14c78474d
158456d9a
hex5a10621

94438945 has 4 divisors (see below), whose sum is σ = 113326740. Its totient is φ = 75551152.

The previous prime is 94438937. The next prime is 94438969. The reversal of 94438945 is 54983449.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54983449 = 291895981.

It can be written as a sum of positive squares in 2 ways, for example, as 37466641 + 56972304 = 6121^2 + 7548^2 .

It is a cyclic number.

It is not a de Polignac number, because 94438945 - 23 = 94438937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 94438895 and 94438904.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9443890 + ... + 9443899.

It is an arithmetic number, because the mean of its divisors is an integer number (28331685).

Almost surely, 294438945 is an apocalyptic number.

It is an amenable number.

94438945 is a deficient number, since it is larger than the sum of its proper divisors (18887795).

94438945 is a wasteful number, since it uses less digits than its factorization.

94438945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18887794.

The product of its digits is 622080, while the sum is 46.

The square root of 94438945 is about 9717.9702098741. The cubic root of 94438945 is about 455.3902299709.

The spelling of 94438945 in words is "ninety-four million, four hundred thirty-eight thousand, nine hundred forty-five".

Divisors: 1 5 18887789 94438945