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1216114968 = 23350671457
BaseRepresentation
bin100100001111100…
…0111000100011000
310010202100001010010
41020133013010120
54442311134333
6320401321520
742064543455
oct11037070430
93122301103
101216114968
115745131a2
1229b3362a0
13164c47473
14b772682c
1571b70563
hex487c7118

1216114968 has 16 divisors (see below), whose sum is σ = 3040287480. Its totient is φ = 405371648.

The previous prime is 1216114961. The next prime is 1216114997. The reversal of 1216114968 is 8694116121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216114961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25335705 + ... + 25335752.

Almost surely, 21216114968 is an apocalyptic number.

It is an amenable number.

1216114968 is an abundant number, since it is smaller than the sum of its proper divisors (1824172512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1216114968 is a wasteful number, since it uses less digits than its factorization.

1216114968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50671466 (or 50671462 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 1216114968 is about 34872.8399761190. The cubic root of 1216114968 is about 1067.3942966744.

The spelling of 1216114968 in words is "one billion, two hundred sixteen million, one hundred fourteen thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 24 50671457 101342914 152014371 202685828 304028742 405371656 608057484 1216114968