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89903320 = 23513237517
BaseRepresentation
bin1010101101111…
…01000011011000
320021011120011121
411112331003120
5141003401240
612530535024
72141110543
oct526750330
9207146147
1089903320
1146825771
1226137474
1315819c40
14bd2385a
157d5d04a
hex55bd0d8

89903320 has 64 divisors (see below), whose sum is σ = 227344320. Its totient is φ = 31747584.

The previous prime is 89903291. The next prime is 89903323. The reversal of 89903320 is 2330998.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89903323) 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, 8202 + ... + 15718.

It is an arithmetic number, because the mean of its divisors is an integer number (3552255).

Almost surely, 289903320 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 89903320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113672160).

89903320 is an abundant number, since it is smaller than the sum of its proper divisors (137441000).

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

89903320 is a wasteful number, since it uses less digits than its factorization.

89903320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7564 (or 7560 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 89903320 is about 9481.7361279462. The cubic root of 89903320 is about 447.9799496766.

The spelling of 89903320 in words is "eighty-nine million, nine hundred three thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 13 20 23 26 40 46 52 65 92 104 115 130 184 230 260 299 460 520 598 920 1196 1495 2392 2990 5980 7517 11960 15034 30068 37585 60136 75170 97721 150340 172891 195442 300680 345782 390884 488605 691564 781768 864455 977210 1383128 1728910 1954420 2247583 3457820 3908840 4495166 6915640 8990332 11237915 17980664 22475830 44951660 89903320