Search a number
-
+
89372628 = 223231531511
BaseRepresentation
bin1010101001110…
…11011111010100
320020011121012100
411110323133110
5140334411003
612511322100
72133440412
oct524733724
9206147170
1089372628
11464a2a84
1225b20330
1315692517
14bc262b2
157ca5ba3
hex553b7d4

89372628 has 72 divisors (see below), whose sum is σ = 237758976. Its totient is φ = 28267200.

The previous prime is 89372617. The next prime is 89372629. The reversal of 89372628 is 82627398.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89372629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58393 + ... + 59903.

It is an arithmetic number, because the mean of its divisors is an integer number (3302208).

Almost surely, 289372628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89372628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118879488).

89372628 is an abundant number, since it is smaller than the sum of its proper divisors (148386348).

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

89372628 is a wasteful number, since it uses less digits than its factorization.

89372628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1600 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 89372628 is about 9453.7097480301. The cubic root of 89372628 is about 447.0967464720.

It can be divided in two parts, 89372 and 628, that added together give a square (90000 = 3002).

The spelling of 89372628 in words is "eighty-nine million, three hundred seventy-two thousand, six hundred twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 31 36 53 62 93 106 124 159 186 212 279 318 372 477 558 636 954 1116 1511 1643 1908 3022 3286 4533 4929 6044 6572 9066 9858 13599 14787 18132 19716 27198 29574 46841 54396 59148 80083 93682 140523 160166 187364 240249 281046 320332 421569 480498 562092 720747 843138 960996 1441494 1686276 2482573 2882988 4965146 7447719 9930292 14895438 22343157 29790876 44686314 89372628