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93044381 = 372514713
BaseRepresentation
bin1011000101110…
…11111010011101
320111002010220012
411202323322131
5142304410011
613122133005
72206602263
oct542737235
9214063805
1093044381
1148580691
12271b1165
1316379861
14c500433
15827da8b
hex58bbe9d

93044381 has 4 divisors (see below), whose sum is σ = 95559132. Its totient is φ = 90529632.

The previous prime is 93044363. The next prime is 93044449. The reversal of 93044381 is 18344039.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18344039 = 72620577.

It can be written as a sum of positive squares in 2 ways, for example, as 45778756 + 47265625 = 6766^2 + 6875^2 .

It is a cyclic number.

It is not a de Polignac number, because 93044381 - 214 = 93027997 is a prime.

It is a super-2 number, since 2×930443812 = 17314513671346322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93044351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1257320 + ... + 1257393.

It is an arithmetic number, because the mean of its divisors is an integer number (23889783).

Almost surely, 293044381 is an apocalyptic number.

It is an amenable number.

93044381 is a deficient number, since it is larger than the sum of its proper divisors (2514751).

93044381 is a wasteful number, since it uses less digits than its factorization.

93044381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514750.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 93044381 is about 9645.9515341930. The cubic root of 93044381 is about 453.1375480378.

The spelling of 93044381 in words is "ninety-three million, forty-four thousand, three hundred eighty-one".

Divisors: 1 37 2514713 93044381