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1064192370409 = 743725692
BaseRepresentation
bin11110111110001101100…
…11101110011011101001
310202201212101200201021101
433133012303232123221
5114413431221323114
62132514435441401
7136612451620000
oct17370663563351
93681771621241
101064192370409
11380359938993
121522b7a56261
137947845ca7c
1439715a07c37
151ca3708cd74
hexf7c6cee6e9

1064192370409 has 45 divisors (see below), whose sum is σ = 1278190741317. Its totient is φ = 885952009152.

The previous prime is 1064192370403. The next prime is 1064192370443. The reversal of 1064192370409 is 9040732914601.

The square root of 1064192370409 is 1031597.

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

It can be written as a sum of positive squares in 4 ways, for example, as 8173064025 + 1056019306384 = 90405^2 + 1027628^2 .

It is not a de Polignac number, because 1064192370409 - 29 = 1064192369897 is a prime.

It is a super-2 number, since 2×10641923704092 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1064192370403) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1870285077 + ... + 1870285645.

Almost surely, 21064192370409 is an apocalyptic number.

1064192370409 is the 1031597-th square number.

1064192370409 is the 515799-th centered octagonal number.

It is an amenable number.

1064192370409 is a deficient number, since it is larger than the sum of its proper divisors (213998370908).

1064192370409 is an frugal number, since it uses more digits than its factorization.

1064192370409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 1064192370409 in words is "one trillion, sixty-four billion, one hundred ninety-two million, three hundred seventy thousand, four hundred nine".

Divisors: 1 7 37 49 259 343 569 1369 1813 2401 3983 9583 12691 21053 27881 67081 88837 147371 195167 323761 469567 778961 1031597 1366169 2266327 3286969 5452727 7221179 11979157 15864289 38169089 50548253 83854099 111050023 267183623 443228809 586978693 777350161 1870285361 3102601663 4108850851 21718211641 28761955957 152027481487 1064192370409