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87830487348 = 2237319207279
BaseRepresentation
bin101000111001100011…
…0101110000100110100
322101201001120001020220
41101303012232010310
52414334101043343
6104203200054340
76226343552532
oct1216306560464
9271631501226
1087830487348
113428102512a
12150323043b0
138389506696
144372b19152
152440b83183
hex14731ae134

87830487348 has 12 divisors (see below), whose sum is σ = 204937803840. Its totient is φ = 29276829112.

The previous prime is 87830487319. The next prime is 87830487397. The reversal of 87830487348 is 84378403878.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 87830487291 and 87830487300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3659603628 + ... + 3659603651.

It is an arithmetic number, because the mean of its divisors is an integer number (17078150320).

Almost surely, 287830487348 is an apocalyptic number.

It is an amenable number.

87830487348 is an abundant number, since it is smaller than the sum of its proper divisors (117107316492).

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

87830487348 is a wasteful number, since it uses less digits than its factorization.

87830487348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7319207286 (or 7319207284 counting only the distinct ones).

The product of its (nonzero) digits is 28901376, while the sum is 60.

The spelling of 87830487348 in words is "eighty-seven billion, eight hundred thirty million, four hundred eighty-seven thousand, three hundred forty-eight".

Divisors: 1 2 3 4 6 12 7319207279 14638414558 21957621837 29276829116 43915243674 87830487348