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13430055020 = 2253718148723
BaseRepresentation
bin11001000000111111…
…00110000001101100
31021122222000111001012
430200133212001230
5210001043230040
610100352404352
7653544404234
oct144037460154
937588014035
1013430055020
115771a09128
1227298466b8
131360507325
14915914cc4
155390a0865
hex3207e606c

13430055020 has 24 divisors (see below), whose sum is σ = 28965363504. Its totient is φ = 5226831936.

The previous prime is 13430055013. The next prime is 13430055059. The reversal of 13430055020 is 2055003431.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9073622 + ... + 9075101.

It is an arithmetic number, because the mean of its divisors is an integer number (1206890146).

Almost surely, 213430055020 is an apocalyptic number.

13430055020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13430055020 is an abundant number, since it is smaller than the sum of its proper divisors (15535308484).

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

13430055020 is a wasteful number, since it uses less digits than its factorization.

13430055020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18148769 (or 18148767 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 13430055020 its reverse (2055003431), we get a palindrome (15485058451).

The spelling of 13430055020 in words is "thirteen billion, four hundred thirty million, fifty-five thousand, twenty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 18148723 36297446 72594892 90743615 181487230 362974460 671502751 1343005502 2686011004 3357513755 6715027510 13430055020