Search a number
-
+
88684971 = 3171738921
BaseRepresentation
bin1010100100100…
…11100110101011
320011212122220120
411102103212223
5140200404341
612444454323
72124544524
oct522234653
9204778816
1088684971
1146073371
122584a3a3
13154b151b
14bac784b
157bbc066
hex54939ab

88684971 has 8 divisors (see below), whose sum is σ = 125202384. Its totient is φ = 55645440.

The previous prime is 88684961. The next prime is 88684979. The reversal of 88684971 is 17948688.

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

It is not a de Polignac number, because 88684971 - 221 = 86587819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 1738921 = 88684971 / (8 + 8 + 6 + 8 + 4 + 9 + 7 + 1).

It is not an unprimeable number, because it can be changed into a prime (88684979) 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, 869410 + ... + 869511.

It is an arithmetic number, because the mean of its divisors is an integer number (15650298).

Almost surely, 288684971 is an apocalyptic number.

88684971 is a deficient number, since it is larger than the sum of its proper divisors (36517413).

88684971 is a wasteful number, since it uses less digits than its factorization.

88684971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738941.

The product of its digits is 774144, while the sum is 51.

The square root of 88684971 is about 9417.2698272907. The cubic root of 88684971 is about 445.9470987011.

The spelling of 88684971 in words is "eighty-eight million, six hundred eighty-four thousand, nine hundred seventy-one".

Divisors: 1 3 17 51 1738921 5216763 29561657 88684971