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1055688161 = 11137700523
BaseRepresentation
bin111110111011001…
…000010111100001
32201120110111220112
4332323020113201
54130224010121
6252431021105
735106126023
oct7673102741
92646414815
101055688161
114a19aa160
1225566a795
1313a937668
14a02c6013
1562a3175b
hex3eec85e1

1055688161 has 8 divisors (see below), whose sum is σ = 1160067744. Its totient is φ = 952709920.

The previous prime is 1055688119. The next prime is 1055688169. The reversal of 1055688161 is 1618865501.

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 1055688161 - 222 = 1051493857 is a prime.

It is a super-2 number, since 2×10556881612 = 2228954986551123842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1055688169) 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 7 ways as a sum of consecutive naturals, for example, 348755 + ... + 351768.

It is an arithmetic number, because the mean of its divisors is an integer number (145008468).

Almost surely, 21055688161 is an apocalyptic number.

1055688161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1055688161 is a deficient number, since it is larger than the sum of its proper divisors (104379583).

1055688161 is a wasteful number, since it uses less digits than its factorization.

1055688161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700671.

The product of its (nonzero) digits is 57600, while the sum is 41.

The square root of 1055688161 is about 32491.3551733380. The cubic root of 1055688161 is about 1018.2284258705.

The spelling of 1055688161 in words is "one billion, fifty-five million, six hundred eighty-eight thousand, one hundred sixty-one".

Divisors: 1 11 137 1507 700523 7705753 95971651 1055688161