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1216114430 = 25121611443
BaseRepresentation
bin100100001111100…
…0110111011111110
310010202100000101012
41020133012323332
54442311130210
6320401315222
742064542056
oct11037067376
93122300335
101216114430
11574512853
1229b335b12
13164c4714b
14b7726566
1571b70305
hex487c6efe

1216114430 has 8 divisors (see below), whose sum is σ = 2189005992. Its totient is φ = 486445768.

The previous prime is 1216114429. The next prime is 1216114439. The reversal of 1216114430 is 344116121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1216114396 and 1216114405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216114439) 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 3 ways as a sum of consecutive naturals, for example, 60805712 + ... + 60805731.

It is an arithmetic number, because the mean of its divisors is an integer number (273625749).

Almost surely, 21216114430 is an apocalyptic number.

1216114430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1216114430 is a deficient number, since it is larger than the sum of its proper divisors (972891562).

1216114430 is a wasteful number, since it uses less digits than its factorization.

1216114430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121611450.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1216114430 is about 34872.8322623787. The cubic root of 1216114430 is about 1067.3941392720.

The spelling of 1216114430 in words is "one billion, two hundred sixteen million, one hundred fourteen thousand, four hundred thirty".

Divisors: 1 2 5 10 121611443 243222886 608057215 1216114430