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87913914801 = 3174831356821
BaseRepresentation
bin101000111100000010…
…0111110000110110001
322101220212112121012120
41101320010332012301
52420021430233201
6104215340144453
76231405642336
oct1217004760661
9271825477176
1087913914801
1134314127439
1215056238129
1383a0896b3b
14437dc3498d
152448162536
hex147813e1b1

87913914801 has 16 divisors (see below), whose sum is σ = 124139801088. Its totient is φ = 55150099200.

The previous prime is 87913914791. The next prime is 87913914853. The reversal of 87913914801 is 10841931978.

It is a happy number.

It is not a de Polignac number, because 87913914801 - 25 = 87913914769 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (87913914871) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 67971 + ... + 424791.

It is an arithmetic number, because the mean of its divisors is an integer number (7758737568).

Almost surely, 287913914801 is an apocalyptic number.

It is an amenable number.

87913914801 is a deficient number, since it is larger than the sum of its proper divisors (36225886287).

87913914801 is a wasteful number, since it uses less digits than its factorization.

87913914801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361672.

The product of its (nonzero) digits is 435456, while the sum is 51.

The spelling of 87913914801 in words is "eighty-seven billion, nine hundred thirteen million, nine hundred fourteen thousand, eight hundred one".

Divisors: 1 3 17 51 4831 14493 82127 246381 356821 1070463 6065957 18197871 1723802251 5171406753 29304638267 87913914801