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192481019945 = 5257172187037
BaseRepresentation
bin1011001101000011000…
…0110100100000101001
3200101211022222220220122
42303100300310200221
511123200120114240
6224231412133025
716622600450234
oct2632060644051
9611738886818
10192481019945
11746a35771a5
1231379607175
13151c6647056
14945d66c41b
1550182e34b5
hex2cd0c34829

192481019945 has 16 divisors (see below), whose sum is σ = 232013366928. Its totient is φ = 153294766080.

The previous prime is 192481019917. The next prime is 192481019947. The reversal of 192481019945 is 549910184291.

It can be written as a sum of positive squares in 8 ways, for example, as 1703377984 + 190777641961 = 41272^2 + 436781^2 .

It is not a de Polignac number, because 192481019945 - 218 = 192480757801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (192481019947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2167967 + ... + 2255003.

It is an arithmetic number, because the mean of its divisors is an integer number (14500835433).

Almost surely, 2192481019945 is an apocalyptic number.

It is an amenable number.

192481019945 is a deficient number, since it is larger than the sum of its proper divisors (39532346983).

192481019945 is a wasteful number, since it uses less digits than its factorization.

192481019945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89020.

The product of its (nonzero) digits is 933120, while the sum is 53.

The spelling of 192481019945 in words is "one hundred ninety-two billion, four hundred eighty-one million, nineteen thousand, nine hundred forty-five".

Divisors: 1 5 257 1285 1721 8605 87037 435185 442297 2211485 22368509 111842545 149790677 748953385 38496203989 192481019945