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87048308788 = 2273108868171
BaseRepresentation
bin101000100010001111…
…0111100100000110100
322022200112202020222121
41101010132330200310
52411233331340123
6103553415205324
76201065262550
oct1210436744064
9268615666877
1087048308788
1133a0a556871
1214a54376844
13829345342c
1442dacac860
1523e717b75d
hex14447bc834

87048308788 has 12 divisors (see below), whose sum is σ = 174096617632. Its totient is φ = 37306418040.

The previous prime is 87048308783. The next prime is 87048308797. The reversal of 87048308788 is 88780384078.

87048308788 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87048308783) 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, 1554434058 + ... + 1554434113.

Almost surely, 287048308788 is an apocalyptic number.

It is an amenable number.

87048308788 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

87048308788 is a wasteful number, since it uses less digits than its factorization.

87048308788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108868182 (or 3108868180 counting only the distinct ones).

The product of its (nonzero) digits is 19267584, while the sum is 61.

The spelling of 87048308788 in words is "eighty-seven billion, forty-eight million, three hundred eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 7 14 28 3108868171 6217736342 12435472684 21762077197 43524154394 87048308788