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93894981097 = 257864142281
BaseRepresentation
bin101011101110010010…
…0111011010111101001
322222100200222020201111
41113130210323113221
53014244103343342
6111045035150321
76532543112401
oct1273444732751
9288320866644
1093894981097
11369032a6035
12162452a53a1
138b14a63918
14478a315801
1526982aa217
hex15dc93b5e9

93894981097 has 8 divisors (see below), whose sum is σ = 94273469352. Its totient is φ = 93516595200.

The previous prime is 93894981091. The next prime is 93894981119. The reversal of 93894981097 is 79018949839.

It can be written as a sum of positive squares in 4 ways, for example, as 41650279056 + 52244702041 = 204084^2 + 228571^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-93894981097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (93894981091) 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, 2199597 + ... + 2241877.

It is an arithmetic number, because the mean of its divisors is an integer number (11784183669).

Almost surely, 293894981097 is an apocalyptic number.

It is an amenable number.

93894981097 is a deficient number, since it is larger than the sum of its proper divisors (378488255).

93894981097 is a wasteful number, since it uses less digits than its factorization.

93894981097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51179.

The product of its (nonzero) digits is 35271936, while the sum is 67.

The spelling of 93894981097 in words is "ninety-three billion, eight hundred ninety-four million, nine hundred eighty-one thousand, ninety-seven".

Divisors: 1 257 8641 42281 2220737 10866217 365350121 93894981097