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89505740 = 2255637949
BaseRepresentation
bin1010101010110…
…11111111001100
320020102100210102
411111123333030
5140403140430
612514230232
72134533452
oct525337714
9206370712
1089505740
1146583a95
1225b85378
131570ac9c
14bc5c9d2
157cd0345
hex555bfcc

89505740 has 24 divisors (see below), whose sum is σ = 188319600. Its totient is φ = 35734208.

The previous prime is 89505737. The next prime is 89505761. The reversal of 89505740 is 4750598.

It is a super-2 number, since 2×895057402 = 16022554985895200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89505694 and 89505703.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7286 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (7846650).

Almost surely, 289505740 is an apocalyptic number.

It is an amenable number.

89505740 is an abundant number, since it is smaller than the sum of its proper divisors (98813860).

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

89505740 is a wasteful number, since it uses less digits than its factorization.

89505740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8521 (or 8519 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 89505740 is about 9460.7473277749. The cubic root of 89505740 is about 447.3186056739.

The spelling of 89505740 in words is "eighty-nine million, five hundred five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 563 1126 2252 2815 5630 7949 11260 15898 31796 39745 79490 158980 4475287 8950574 17901148 22376435 44752870 89505740