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89313381 = 333307903
BaseRepresentation
bin1010101001011…
…01000001100101
320020001120221000
411110231001211
5140331012011
612510143513
72133102603
oct524550145
9206046830
1089313381
1146462513
1225ab1b99
1315671571
14bc0c873
157c93356
hex552d065

89313381 has 8 divisors (see below), whose sum is σ = 132316160. Its totient is φ = 59542236.

The previous prime is 89313379. The next prime is 89313397. The reversal of 89313381 is 18331398.

It is not a de Polignac number, because 89313381 - 21 = 89313379 is a prime.

It is a super-2 number, since 2×893133812 = 15953760051302322, 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 (89313331) 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, 1653925 + ... + 1653978.

It is an arithmetic number, because the mean of its divisors is an integer number (16539520).

Almost surely, 289313381 is an apocalyptic number.

It is an amenable number.

89313381 is a deficient number, since it is larger than the sum of its proper divisors (43002779).

89313381 is a wasteful number, since it uses less digits than its factorization.

89313381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307912 (or 3307906 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 89313381 is about 9450.5756967499. The cubic root of 89313381 is about 446.9979280117.

The spelling of 89313381 in words is "eighty-nine million, three hundred thirteen thousand, three hundred eighty-one".

Divisors: 1 3 9 27 3307903 9923709 29771127 89313381