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11601230691 = 3191045319471
BaseRepresentation
bin10101100110111110…
…01011101101100011
31002221111202120200210
422303133023231203
5142224403340231
65155102345203
7560326556001
oct126337135543
932844676623
1011601230691
114a13657366
1222b928b203
13112b66445b
147c0a97a71
1547d751a46
hex2b37cbb63

11601230691 has 16 divisors (see below), whose sum is σ = 16284823040. Its totient is φ = 7326015840.

The previous prime is 11601230677. The next prime is 11601230717. The reversal of 11601230691 is 19603210611.

It is not a de Polignac number, because 11601230691 - 225 = 11567676259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11601230611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586086 + ... + 605556.

It is an arithmetic number, because the mean of its divisors is an integer number (1017801440).

Almost surely, 211601230691 is an apocalyptic number.

11601230691 is a deficient number, since it is larger than the sum of its proper divisors (4683592349).

11601230691 is a wasteful number, since it uses less digits than its factorization.

11601230691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29946.

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 11601230691 in words is "eleven billion, six hundred one million, two hundred thirty thousand, six hundred ninety-one".

Divisors: 1 3 19 57 10453 19471 31359 58413 198607 369949 595821 1109847 203530363 610591089 3867076897 11601230691