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87842546292 = 2237320212191
BaseRepresentation
bin101000111001111010…
…0101110001001110100
322101201220020201000110
41101303310232021310
52414400142440132
6104204310343020
76226551216024
oct1216364561164
9271656221013
1087842546292
11342879111a6
121503635aa70
13838bb69457
144374577a84
152441c661cc
hex1473d2e274

87842546292 has 12 divisors (see below), whose sum is σ = 204965941376. Its totient is φ = 29280848760.

The previous prime is 87842546291. The next prime is 87842546293. The reversal of 87842546292 is 29264524878.

It is an interprime number because it is at equal distance from previous prime (87842546291) and next prime (87842546293).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87842546291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3660106084 + ... + 3660106107.

Almost surely, 287842546292 is an apocalyptic number.

It is an amenable number.

87842546292 is an abundant number, since it is smaller than the sum of its proper divisors (117123395084).

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

87842546292 is a wasteful number, since it uses less digits than its factorization.

87842546292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320212198 (or 7320212196 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The spelling of 87842546292 in words is "eighty-seven billion, eight hundred forty-two million, five hundred forty-six thousand, two hundred ninety-two".

Divisors: 1 2 3 4 6 12 7320212191 14640424382 21960636573 29280848764 43921273146 87842546292