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89739828157 = 71723293730557
BaseRepresentation
bin101001110010011101…
…0010001101110111101
322120122010022121110011
41103210322101232331
52432241344000112
6105120443543221
76324556645030
oct1234472215675
9276563277404
1089739828157
1135070880141
121548582ab11
138601c5aa45
1444b4535017
1525035d8aa7
hex14e4e91bbd

89739828157 has 64 divisors (see below), whose sum is σ = 120393630720. Its totient is φ = 65050546176.

The previous prime is 89739828137. The next prime is 89739828193. The reversal of 89739828157 is 75182893798.

It is not a de Polignac number, because 89739828157 - 223 = 89731439549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89739828092 and 89739828101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89739828107) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2921523 + ... + 2952079.

It is an arithmetic number, because the mean of its divisors is an integer number (1881150480).

Almost surely, 289739828157 is an apocalyptic number.

It is an amenable number.

89739828157 is a deficient number, since it is larger than the sum of its proper divisors (30653802563).

89739828157 is a wasteful number, since it uses less digits than its factorization.

89739828157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30670.

The product of its digits is 60963840, while the sum is 67.

The spelling of 89739828157 in words is "eighty-nine billion, seven hundred thirty-nine million, eight hundred twenty-eight thousand, one hundred fifty-seven".

Divisors: 1 7 17 23 29 37 119 161 203 259 391 493 629 667 851 1073 2737 3451 4403 4669 5957 7511 11339 14467 18241 24679 30557 79373 101269 127687 172753 213899 419543 519469 702811 886153 1130609 2936801 3636283 4919677 6203071 7914263 11947787 15064601 19220353 20381519 26004007 32787661 83634509 105452207 134542471 142670633 182028049 229513627 346485823 442068119 557390237 754116203 2425400761 3094476833 3901731659 5278813421 12819975451 89739828157