Search a number
-
+
89793861 = 3139349617
BaseRepresentation
bin1010101101000…
…10010101000101
320020222000000120
411112202111011
5140441400421
612524332153
72140143453
oct526422505
9206860016
1089793861
1146760503
12260a4059
13157ac181
14bcd59d3
157d3a8c6
hex55a2545

89793861 has 16 divisors (see below), whose sum is σ = 121128000. Its totient is φ = 59165568.

The previous prime is 89793859. The next prime is 89793901. The reversal of 89793861 is 16839798.

It is not a de Polignac number, because 89793861 - 21 = 89793859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89793461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145225 + ... + 145841.

It is an arithmetic number, because the mean of its divisors is an integer number (7570500).

Almost surely, 289793861 is an apocalyptic number.

It is an amenable number.

89793861 is a deficient number, since it is larger than the sum of its proper divisors (31334139).

89793861 is a wasteful number, since it uses less digits than its factorization.

89793861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108.

The product of its digits is 653184, while the sum is 51.

The square root of 89793861 is about 9475.9622730359. The cubic root of 89793861 is about 447.7980678088.

The spelling of 89793861 in words is "eighty-nine million, seven hundred ninety-three thousand, eight hundred sixty-one".

Divisors: 1 3 139 349 417 617 1047 1851 48511 85763 145533 215333 257289 645999 29931287 89793861