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1219088968 = 23152386121
BaseRepresentation
bin100100010101001…
…1101001001001000
310010221221010200021
41020222131021020
54444041321333
6320545150224
742132041146
oct11052351110
93127833607
101219088968
11576164649
122a032b374
13165749026
14b7c9c596
157205b82d
hex48a9d248

1219088968 has 8 divisors (see below), whose sum is σ = 2285791830. Its totient is φ = 609544480.

The previous prime is 1219088953. The next prime is 1219089007. The reversal of 1219088968 is 8698809121.

It can be written as a sum of positive squares in only one way, i.e., 762753924 + 456335044 = 27618^2 + 21362^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76193053 + ... + 76193068.

Almost surely, 21219088968 is an apocalyptic number.

It is an amenable number.

1219088968 is a deficient number, since it is larger than the sum of its proper divisors (1066702862).

1219088968 is a wasteful number, since it uses less digits than its factorization.

1219088968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152386127 (or 152386123 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 52.

The square root of 1219088968 is about 34915.4545724383. The cubic root of 1219088968 is about 1068.2636899334.

The spelling of 1219088968 in words is "one billion, two hundred nineteen million, eighty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 152386121 304772242 609544484 1219088968