Search a number
-
+
89078444 = 22713244721
BaseRepresentation
bin1010100111100…
…11101010101100
320012121122122122
411103303222230
5140301002234
612501132112
72131103630
oct523635254
9205548578
1089078444
1146311a54
12259ba038
13155bb650
14bb8adc0
157c4892e
hex54f3aac

89078444 has 24 divisors (see below), whose sum is σ = 191862048. Its totient is φ = 35239680.

The previous prime is 89078393. The next prime is 89078447. The reversal of 89078444 is 44487098.

It is a super-2 number, since 2×890784442 = 15869938370922272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89078395 and 89078404.

It is not an unprimeable number, because it can be changed into a prime (89078447) 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, 121997 + ... + 122724.

It is an arithmetic number, because the mean of its divisors is an integer number (7994252).

Almost surely, 289078444 is an apocalyptic number.

It is an amenable number.

89078444 is an abundant number, since it is smaller than the sum of its proper divisors (102783604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89078444 is a wasteful number, since it uses less digits than its factorization.

89078444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244745 (or 244743 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 89078444 is about 9438.1377400417. The cubic root of 89078444 is about 446.6056442465.

The spelling of 89078444 in words is "eighty-nine million, seventy-eight thousand, four hundred forty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 244721 489442 978884 1713047 3181373 3426094 6362746 6852188 12725492 22269611 44539222 89078444