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10987788071 = 134120614987
BaseRepresentation
bin10100011101110110…
…00101011100100111
31001100202110110121202
422032323011130213
5140000333204241
65014150233115
7536200441361
oct121673053447
931322413552
1010987788071
114729357897
12216795579b
131061540060
14763411d31
1544497ad9b
hex28eec5727

10987788071 has 8 divisors (see below), whose sum is σ = 12121612944. Its totient is φ = 9895193280.

The previous prime is 10987788067. The next prime is 10987788101. The reversal of 10987788071 is 17088778901.

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 10987788071 - 22 = 10987788067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10987787998 and 10987788016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10987788061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10306961 + ... + 10308026.

It is an arithmetic number, because the mean of its divisors is an integer number (1515201618).

Almost surely, 210987788071 is an apocalyptic number.

10987788071 is a deficient number, since it is larger than the sum of its proper divisors (1133824873).

10987788071 is a wasteful number, since it uses less digits than its factorization.

10987788071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20615041.

The product of its (nonzero) digits is 1580544, while the sum is 56.

The spelling of 10987788071 in words is "ten billion, nine hundred eighty-seven million, seven hundred eighty-eight thousand, seventy-one".

Divisors: 1 13 41 533 20614987 267994831 845214467 10987788071