Search a number
-
+
85833421 = 477923117
BaseRepresentation
bin1010001110110…
…11011011001101
312222111210022121
411013123123031
5133433132141
612303412541
72061400132
oct507333315
9188453277
1085833421
11444a5a13
12248b4151
1314a2360b
14b584589
1578071d1
hex51db6cd

85833421 has 8 divisors (see below), whose sum is σ = 88773120. Its totient is φ = 82940208.

The previous prime is 85833413. The next prime is 85833439. The reversal of 85833421 is 12433858.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 85833421 - 23 = 85833413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85833481) 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, 7846 + ... + 15271.

It is an arithmetic number, because the mean of its divisors is an integer number (11096640).

Almost surely, 285833421 is an apocalyptic number.

It is an amenable number.

85833421 is a deficient number, since it is larger than the sum of its proper divisors (2939699).

85833421 is a wasteful number, since it uses less digits than its factorization.

85833421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23243.

The product of its digits is 23040, while the sum is 34.

The square root of 85833421 is about 9264.6328043803. The cubic root of 85833421 is about 441.1153195846.

The spelling of 85833421 in words is "eighty-five million, eight hundred thirty-three thousand, four hundred twenty-one".

Divisors: 1 47 79 3713 23117 1086499 1826243 85833421