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116988911 = 1361151977
BaseRepresentation
bin1101111100100…
…01101111101111
322011010122121122
412332101233233
5214422121121
615335251155
72620250354
oct676215757
9264118548
10116988911
1160045556
1233219abb
131b311510
141177462b
15a40d5ab
hex6f91bef

116988911 has 16 divisors (see below), whose sum is σ = 129033408. Its totient is φ = 105408000.

The previous prime is 116988889. The next prime is 116988923. The reversal of 116988911 is 119889611.

It is not a de Polignac number, because 116988911 - 26 = 116988847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116988941) 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 15 ways as a sum of consecutive naturals, for example, 119255 + ... + 120231.

It is an arithmetic number, because the mean of its divisors is an integer number (8064588).

Almost surely, 2116988911 is an apocalyptic number.

116988911 is a deficient number, since it is larger than the sum of its proper divisors (12044497).

116988911 is a wasteful number, since it uses less digits than its factorization.

116988911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its digits is 31104, while the sum is 44.

The square root of 116988911 is about 10816.1412250395. The cubic root of 116988911 is about 489.0818723102.

The spelling of 116988911 in words is "one hundred sixteen million, nine hundred eighty-eight thousand, nine hundred eleven".

Divisors: 1 13 61 151 793 977 1963 9211 12701 59597 119743 147527 774761 1917851 8999147 116988911