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6107901987889 = 132151212592
BaseRepresentation
bin101100011100001101101…
…0101000000110000110001
3210121220120012011110201001
41120320123111000300301
51300032440402103024
620553533105042001
71200165335164222
oct130703325006061
923556505143631
106107901987889
111a4538a491a59
12827904026301
13353c84cb6900
141718a44c3249
15a8d31cac244
hex58e1b540c31

6107901987889 has 27 divisors (see below), whose sum is σ = 6663265150059. Its totient is φ = 5596276654800.

The previous prime is 6107901987833. The next prime is 6107901987919. The reversal of 6107901987889 is 9887891097016.

The square root of 6107901987889 is 2471417.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 903535797025 + 5204366190864 = 950545^2 + 2281308^2 .

It is not a de Polignac number, because 6107901987889 - 227 = 6107767770161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6107901981889) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4851390942 + ... + 4851392200.

Almost surely, 26107901987889 is an apocalyptic number.

6107901987889 is the 2471417-th square number.

6107901987889 is the 1235709-th centered octagonal number.

It is an amenable number.

6107901987889 is a deficient number, since it is larger than the sum of its proper divisors (555363162170).

6107901987889 is an frugal number, since it uses more digits than its factorization.

6107901987889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2846 (or 1423 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 73.

The spelling of 6107901987889 in words is "six trillion, one hundred seven billion, nine hundred one million, nine hundred eighty-seven thousand, eight hundred eighty-nine".

Divisors: 1 13 151 169 1259 1963 16367 22801 25519 190109 212771 296413 1585081 2471417 3853369 20606053 28706459 32128421 239347231 267878689 373183967 3111514003 4851391571 36141431881 40449682039 469838614453 6107901987889