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89228580 = 223571712497
BaseRepresentation
bin1010101000110…
…00010100100100
320012220021121020
411110120110210
5140320303310
612504251140
72132300430
oct524302444
9205807536
1089228580
1146404831
1225a70ab0
1315641a9c
14bbc99c0
157c78170
hex5518524

89228580 has 96 divisors (see below), whose sum is σ = 302351616. Its totient is φ = 19193856.

The previous prime is 89228567. The next prime is 89228593. The reversal of 89228580 is 8582298.

It is an interprime number because it is at equal distance from previous prime (89228567) and next prime (89228593).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 892 + ... + 13388.

It is an arithmetic number, because the mean of its divisors is an integer number (3149496).

Almost surely, 289228580 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 89228580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151175808).

89228580 is an abundant number, since it is smaller than the sum of its proper divisors (213123036).

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

89228580 is a wasteful number, since it uses less digits than its factorization.

89228580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533 (or 12531 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 89228580 is about 9446.0880791998. The cubic root of 89228580 is about 446.8564117979.

The spelling of 89228580 in words is "eighty-nine million, two hundred twenty-eight thousand, five hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 17 20 21 28 30 34 35 42 51 60 68 70 84 85 102 105 119 140 170 204 210 238 255 340 357 420 476 510 595 714 1020 1190 1428 1785 2380 3570 7140 12497 24994 37491 49988 62485 74982 87479 124970 149964 174958 187455 212449 249940 262437 349916 374910 424898 437395 524874 637347 749820 849796 874790 1049748 1062245 1274694 1312185 1487143 1749580 2124490 2549388 2624370 2974286 3186735 4248980 4461429 5248740 5948572 6373470 7435715 8922858 12746940 14871430 17845716 22307145 29742860 44614290 89228580