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72838075036273 = 427117054103263
BaseRepresentation
bin10000100011111011101111…
…100101101011001001110001
3100112220020210200111121102221
4100203323233211223021301
534021334334202130043
6414525203313041041
721225243254302561
oct2043735745531161
9315806720447387
1072838075036273
11212324aa522a28
12820460bb56181
1331847a75358b1
1413db54b322da1
15864a437ac8ed
hex423eef96b271

72838075036273 has 4 divisors (see below), whose sum is σ = 72855129143808. Its totient is φ = 72821020928740.

The previous prime is 72838075036271. The next prime is 72838075036291. The reversal of 72838075036273 is 37263057083827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72838075036273 - 21 = 72838075036271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72838075036271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8527047361 + ... + 8527055902.

It is an arithmetic number, because the mean of its divisors is an integer number (18213782285952).

Almost surely, 272838075036273 is an apocalyptic number.

It is an amenable number.

72838075036273 is a deficient number, since it is larger than the sum of its proper divisors (17054107535).

72838075036273 is a wasteful number, since it uses less digits than its factorization.

72838075036273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17054107534.

The product of its (nonzero) digits is 71124480, while the sum is 61.

The spelling of 72838075036273 in words is "seventy-two trillion, eight hundred thirty-eight billion, seventy-five million, thirty-six thousand, two hundred seventy-three".

Divisors: 1 4271 17054103263 72838075036273