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89620480 = 2155547
BaseRepresentation
bin1010101011110…
…00000000000000
320020122012012001
411111320000000
5140420323410
612520513344
72135522125
oct525700000
9206565161
1089620480
1146652214
122601b854
131574b291
14bc8c74c
157d0433a
hex5578000

89620480 has 64 divisors (see below), whose sum is σ = 215479080. Its totient is φ = 35782656.

The previous prime is 89620477. The next prime is 89620483. The reversal of 89620480 is 8402698.

It is an interprime number because it is at equal distance from previous prime (89620477) and next prime (89620483).

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89620483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163567 + ... + 164113.

Almost surely, 289620480 is an apocalyptic number.

89620480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 89620480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107739540).

89620480 is an abundant number, since it is smaller than the sum of its proper divisors (125858600).

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

89620480 is an frugal number, since it uses more digits than its factorization.

89620480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 89620480 is about 9466.8093885955. The cubic root of 89620480 is about 447.5096676126.

It can be divided in two parts, 89620 and 480, that added together give a triangular number (90100 = T424).

The spelling of 89620480 in words is "eighty-nine million, six hundred twenty thousand, four hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 512 547 640 1024 1094 1280 2048 2188 2560 2735 4096 4376 5120 5470 8192 8752 10240 10940 16384 17504 20480 21880 32768 35008 40960 43760 70016 81920 87520 140032 163840 175040 280064 350080 560128 700160 1120256 1400320 2240512 2800640 4481024 5601280 8962048 11202560 17924096 22405120 44810240 89620480