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89627440 = 2457160049
BaseRepresentation
bin1010101011110…
…01101100110000
320020122112201211
411111321230300
5140421034230
612521005504
72135551330
oct525715460
9206575654
1089627440
1146657471
1226023894
13157514b6
14bc910c0
157d0642a
hex5579b30

89627440 has 40 divisors (see below), whose sum is σ = 238154400. Its totient is φ = 30729216.

The previous prime is 89627423. The next prime is 89627443. The reversal of 89627440 is 4472698.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 89627393 and 89627402.

It is not an unprimeable number, because it can be changed into a prime (89627443) 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, 79465 + ... + 80584.

It is an arithmetic number, because the mean of its divisors is an integer number (5953860).

Almost surely, 289627440 is an apocalyptic number.

89627440 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

89627440 is an abundant number, since it is smaller than the sum of its proper divisors (148526960).

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

89627440 is a wasteful number, since it uses less digits than its factorization.

89627440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160069 (or 160063 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 89627440 is about 9467.1769815505. The cubic root of 89627440 is about 447.5212519687.

The spelling of 89627440 in words is "eighty-nine million, six hundred twenty-seven thousand, four hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 160049 320098 640196 800245 1120343 1280392 1600490 2240686 2560784 3200980 4481372 5601715 6401960 8962744 11203430 12803920 17925488 22406860 44813720 89627440