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1924728968 = 23155112
BaseRepresentation
bin111001010111001…
…0000100010001000
311222010201100210002
41302232100202020
512420212311333
6514553342132
765460632501
oct16256204210
94863640702
101924728968
118a85063a8
12458707948
132489b15a6
141438a3ba8
15b3e950e8
hex72b90888

1924728968 has 12 divisors (see below), whose sum is σ = 3609099495. Its totient is φ = 962302440.

The previous prime is 1924728959. The next prime is 1924728983. The reversal of 1924728968 is 8698274291.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 962364484 + 962364484 = 31022^2 + 31022^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=31022.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 116333 + ... + 131843.

Almost surely, 21924728968 is an apocalyptic number.

It is an amenable number.

1924728968 is a deficient number, since it is larger than the sum of its proper divisors (1684370527).

1924728968 is an frugal number, since it uses more digits than its factorization.

1924728968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31028 (or 15513 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 1924728968 is about 43871.7331319382. The cubic root of 1924728968 is about 1243.9125826435.

The spelling of 1924728968 in words is "one billion, nine hundred twenty-four million, seven hundred twenty-eight thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 15511 31022 62044 124088 240591121 481182242 962364484 1924728968