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5138543960 = 2351197120397
BaseRepresentation
bin1001100100100011…
…11111010101011000
3111021010002002010222
410302101333111120
541010431401320
62205520455212
7241223621504
oct46221772530
914233062128
105138543960
1121a7635150
12bb4a7a508
1363b779274
1436a647304
152011c1825
hex13247f558

5138543960 has 64 divisors (see below), whose sum is σ = 12742924320. Its totient is φ = 1849282560.

The previous prime is 5138543957. The next prime is 5138543983. The reversal of 5138543960 is 693458315.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17519 + ... + 102878.

Almost surely, 25138543960 is an apocalyptic number.

It is an amenable number.

5138543960 is an abundant number, since it is smaller than the sum of its proper divisors (7604380360).

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

5138543960 is a wasteful number, since it uses less digits than its factorization.

5138543960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120516 (or 120512 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 44.

The square root of 5138543960 is about 71683.6380215179. The cubic root of 5138543960 is about 1725.6260652662.

The spelling of 5138543960 in words is "five billion, one hundred thirty-eight million, five hundred forty-three thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 97 110 194 220 388 440 485 776 970 1067 1940 2134 3880 4268 5335 8536 10670 21340 42680 120397 240794 481588 601985 963176 1203970 1324367 2407940 2648734 4815880 5297468 6621835 10594936 11678509 13243670 23357018 26487340 46714036 52974680 58392545 93428072 116785090 128463599 233570180 256927198 467140360 513854396 642317995 1027708792 1284635990 2569271980 5138543960