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165232242760 = 23513317754313
BaseRepresentation
bin1001100111100010011…
…0111111000001001000
3120210111022121121201211
42121320212333001020
510201343423232020
6203523500222504
714636415614164
oct2317046770110
9523438547654
10165232242760
1164090325632
1228033b3aa34
1312773261560
147dd678bca4
154470ebb85a
hex26789bf048

165232242760 has 32 divisors (see below), whose sum is σ = 400370435640. Its totient is φ = 61008827904.

The previous prime is 165232242731. The next prime is 165232242787. The reversal of 165232242760 is 67242232561.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 91033751524 + 74198491236 = 301718^2 + 272394^2 .

It is a super-3 number, since 3×1652322427603 (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158876637 + ... + 158877676.

Almost surely, 2165232242760 is an apocalyptic number.

165232242760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

165232242760 is an abundant number, since it is smaller than the sum of its proper divisors (235138192880).

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

165232242760 is a wasteful number, since it uses less digits than its factorization.

165232242760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317754337 (or 317754333 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 165232242760 in words is "one hundred sixty-five billion, two hundred thirty-two million, two hundred forty-two thousand, seven hundred sixty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 317754313 635508626 1271017252 1588771565 2542034504 3177543130 4130806069 6355086260 8261612138 12710172520 16523224276 20654030345 33046448552 41308060690 82616121380 165232242760