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87728873403 = 3109126803811
BaseRepresentation
bin101000110110100001…
…1000101111110111011
322101102222100112010110
41101231003011332323
52414132042422103
6104145130115403
76224001056133
oct1215503057673
9271388315113
1087728873403
1134229731066
121500427bb63
1383714493a2
144363427ac3
152436cb0403
hex146d0c5fbb

87728873403 has 8 divisors (see below), whose sum is σ = 117079050816. Its totient is φ = 58432305800.

The previous prime is 87728873369. The next prime is 87728873411. The reversal of 87728873403 is 30437882778.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87728873403 - 26 = 87728873339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87728874403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13398633 + ... + 13405178.

It is an arithmetic number, because the mean of its divisors is an integer number (14634881352).

Almost surely, 287728873403 is an apocalyptic number.

87728873403 is a deficient number, since it is larger than the sum of its proper divisors (29350177413).

87728873403 is a wasteful number, since it uses less digits than its factorization.

87728873403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26804905.

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 87728873403 in words is "eighty-seven billion, seven hundred twenty-eight million, eight hundred seventy-three thousand, four hundred three".

Divisors: 1 3 1091 3273 26803811 80411433 29242957801 87728873403