Search a number
-
+
80236088181865 = 57211142072095601
BaseRepresentation
bin10010001111100101101011…
…100010001100010001101001
3101112002111100221102021221201
4102033211223202030101221
541004042002033304430
6442351541113404201
722620603030422500
oct2217455342142151
9345074327367851
1080236088181865
1123624a30034530
128bba35b709661
1335a02cc978755
1415b56398c5837
159421d123c8ca
hex48f96b88c469

80236088181865 has 48 divisors (see below), whose sum is σ = 122193781438464. Its totient is φ = 50013757248000.

The previous prime is 80236088181827. The next prime is 80236088181881. The reversal of 80236088181865 is 56818188063208.

It is not a de Polignac number, because 80236088181865 - 217 = 80236088050793 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80236088181797 and 80236088181806.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37240065 + ... + 39335665.

It is an arithmetic number, because the mean of its divisors is an integer number (2545703779968).

Almost surely, 280236088181865 is an apocalyptic number.

It is an amenable number.

80236088181865 is a deficient number, since it is larger than the sum of its proper divisors (41957693256599).

80236088181865 is a wasteful number, since it uses less digits than its factorization.

80236088181865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109838 (or 2109831 counting only the distinct ones).

The product of its (nonzero) digits is 35389440, while the sum is 64.

The spelling of 80236088181865 in words is "eighty trillion, two hundred thirty-six billion, eighty-eight million, one hundred eighty-one thousand, eight hundred sixty-five".

Divisors: 1 5 7 11 35 49 55 77 245 385 539 2695 14207 71035 99449 156277 497245 696143 781385 1093939 2095601 3480715 5469695 7657573 10478005 14669207 23051611 38287865 73346035 102684449 115258055 161361277 513422245 806806385 1129528939 5647644695 29772203407 148861017035 208405423849 327494237477 1042027119245 1458837966943 1637471187385 2292459662339 7294189834715 11462298311695 16047217636373 80236088181865