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13123554133300 = 22521312298214029
BaseRepresentation
bin1011111011111001000011…
…0010000100010100110100
31201110121012001101211002121
42332332100302010110310
53210004014324231200
643524513314245324
72523100622404432
oct276762062042464
951417161354077
1013123554133300
1141aa7391a5866
12157b523886844
137427132b3930
1433527d3bbd52
1517b59168de1a
hexbef90c84534

13123554133300 has 72 divisors (see below), whose sum is σ = 30693694462200. Its totient is φ = 4841676664320.

The previous prime is 13123554133297. The next prime is 13123554133301. The reversal of 13123554133300 is 333145532131.

It can be written as a sum of positive squares in 12 ways, for example, as 3171661799056 + 9951892334244 = 1780916^2 + 3154662^2 .

It is a super-3 number, since 3×131235541333003 (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123554133301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2509315 + ... + 5704714.

It is an arithmetic number, because the mean of its divisors is an integer number (426301311975).

Almost surely, 213123554133300 is an apocalyptic number.

13123554133300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123554133300 is an abundant number, since it is smaller than the sum of its proper divisors (17570140328900).

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

13123554133300 is a wasteful number, since it uses less digits than its factorization.

13123554133300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215285 (or 8215278 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 34.

Adding to 13123554133300 its reverse (333145532131), we get a palindrome (13456699665431).

The spelling of 13123554133300 in words is "thirteen trillion, one hundred twenty-three billion, five hundred fifty-four million, one hundred thirty-three thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 260 325 650 1229 1300 2458 4916 6145 12290 15977 24580 30725 31954 61450 63908 79885 122900 159770 319540 399425 798850 1597700 8214029 16428058 32856116 41070145 82140290 106782377 164280580 205350725 213564754 410701450 427129508 533911885 821402900 1067823770 2135647540 2669559425 5339118850 10095041641 10678237700 20190083282 40380166564 50475208205 100950416410 131235541333 201900832820 252376041025 262471082666 504752082050 524942165332 656177706665 1009504164100 1312355413330 2624710826660 3280888533325 6561777066650 13123554133300