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89689044 = 22319393373
BaseRepresentation
bin1010101100010…
…00101111010100
320020202200020110
411112020233110
5140430022134
612522203020
72136226044
oct526105724
9206680213
1089689044
1146699785
1226053470
1315773553
14bca9724
157d197e9
hex5588bd4

89689044 has 24 divisors (see below), whose sum is σ = 220289440. Its totient is φ = 28322784.

The previous prime is 89689043. The next prime is 89689057. The reversal of 89689044 is 44098698.

It is a super-2 number, since 2×896890442 = 16088249227267872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 89688984 and 89689002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89689043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196459 + ... + 196914.

Almost surely, 289689044 is an apocalyptic number.

It is an amenable number.

89689044 is an abundant number, since it is smaller than the sum of its proper divisors (130600396).

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

89689044 is a wasteful number, since it uses less digits than its factorization.

89689044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393399 (or 393397 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 48.

The square root of 89689044 is about 9470.4299796789. The cubic root of 89689044 is about 447.6237606990.

The spelling of 89689044 in words is "eighty-nine million, six hundred eighty-nine thousand, forty-four".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 393373 786746 1180119 1573492 2360238 4720476 7474087 14948174 22422261 29896348 44844522 89689044