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87268007508 = 2231123414391597
BaseRepresentation
bin101000101000110010…
…1000001111001010100
322100020212011002222020
41101101211001321110
52412211102220013
6104031304133140
76206403552603
oct1212145017124
9270225132866
1087268007508
1134012573760
1214ab5a671b0
1382c9b16986
14431c13ba3a
15240b5c7623
hex1451941e54

87268007508 has 192 divisors, whose sum is σ = 238138306560. Its totient is φ = 24606489600.

The previous prime is 87268007503. The next prime is 87268007597. The reversal of 87268007508 is 80570086278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87268007503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 54644166 + ... + 54645762.

It is an arithmetic number, because the mean of its divisors is an integer number (1240303680).

Almost surely, 287268007508 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87268007508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119069153280).

87268007508 is an abundant number, since it is smaller than the sum of its proper divisors (150870299052).

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

87268007508 is a wasteful number, since it uses less digits than its factorization.

87268007508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2118 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 51.

The spelling of 87268007508 in words is "eighty-seven billion, two hundred sixty-eight million, seven thousand, five hundred eight".