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89205907431 = 3188915741293
BaseRepresentation
bin101001100010100010…
…1100001111111100111
322112020220122121220110
41103011011201333213
52430143203014211
6104551452104103
76305414462604
oct1230505417747
9275226577813
1089205907431
1134917455643
1215356a65033
13854845a214
14446366d6ab
1524c17beea6
hex14c5161fe7

89205907431 has 8 divisors (see below), whose sum is σ = 119004182640. Its totient is φ = 59439118592.

The previous prime is 89205907393. The next prime is 89205907433. The reversal of 89205907431 is 13470950298.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 89205907431 - 26 = 89205907367 is a prime.

It is a super-2 number, since 2×892059074312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89205907433) 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, 7864980 + ... + 7876313.

It is an arithmetic number, because the mean of its divisors is an integer number (14875522830).

Almost surely, 289205907431 is an apocalyptic number.

89205907431 is a deficient number, since it is larger than the sum of its proper divisors (29798275209).

89205907431 is a wasteful number, since it uses less digits than its factorization.

89205907431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15743185.

The product of its (nonzero) digits is 544320, while the sum is 48.

The spelling of 89205907431 in words is "eighty-nine billion, two hundred five million, nine hundred seven thousand, four hundred thirty-one".

Divisors: 1 3 1889 5667 15741293 47223879 29735302477 89205907431