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93870089 = 194940531
BaseRepresentation
bin1011001100001…
…01100000001001
320112122002112222
411212011200021
5143012320324
613151543425
72216611505
oct546054011
9215562488
1093870089
1148a94a95
122752ab75
13165a8641
14c677305
15839355e
hex5985809

93870089 has 4 divisors (see below), whose sum is σ = 98810640. Its totient is φ = 88929540.

The previous prime is 93870083. The next prime is 93870097. The reversal of 93870089 is 98007839.

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: 98007839 = 175765167.

It is a cyclic number.

It is not a de Polignac number, because 93870089 - 28 = 93869833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (93870083) 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, 2470247 + ... + 2470284.

It is an arithmetic number, because the mean of its divisors is an integer number (24702660).

Almost surely, 293870089 is an apocalyptic number.

It is an amenable number.

93870089 is a deficient number, since it is larger than the sum of its proper divisors (4940551).

93870089 is a wasteful number, since it uses less digits than its factorization.

93870089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940550.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 93870089 is about 9688.6577501737. The cubic root of 93870089 is about 454.4740353960.

The spelling of 93870089 in words is "ninety-three million, eight hundred seventy thousand, eighty-nine".

Divisors: 1 19 4940531 93870089