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89789872548 = 22357111310189
BaseRepresentation
bin101001110011111100…
…1001011100110100100
322120202121111010110010
41103213321023212210
52432342201410143
6105125432330220
76326035216035
oct1234771134644
9276677433403
1089789872548
1135097051242
121549a543970
13860c4303cc
1444bb040a8c
152507bc1a33
hex14e7e4b9a4

89789872548 has 24 divisors (see below), whose sum is σ = 209546547840. Its totient is φ = 29924693920.

The previous prime is 89789872541. The next prime is 89789872607. The reversal of 89789872548 is 84527898798.

It is a self number, because there is not a number n which added to its sum of digits gives 89789872548.

It is not an unprimeable number, because it can be changed into a prime (89789872541) 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, 586563 + ... + 723626.

It is an arithmetic number, because the mean of its divisors is an integer number (8731106160).

Almost surely, 289789872548 is an apocalyptic number.

It is an amenable number.

89789872548 is an abundant number, since it is smaller than the sum of its proper divisors (119756675292).

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

89789872548 is a wasteful number, since it uses less digits than its factorization.

89789872548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315907 (or 1315905 counting only the distinct ones).

The product of its digits is 650280960, while the sum is 75.

The spelling of 89789872548 in words is "eighty-nine billion, seven hundred eighty-nine million, eight hundred seventy-two thousand, five hundred forty-eight".

Divisors: 1 2 3 4 6 12 5711 11422 17133 22844 34266 68532 1310189 2620378 3930567 5240756 7861134 15722268 7482489379 14964978758 22447468137 29929957516 44894936274 89789872548