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13538300080 = 245429739383
BaseRepresentation
bin11001001101111001…
…00001000010110000
31021221111200220100111
430212330201002300
5210211301100310
610115220431104
7656330436424
oct144674410260
937844626314
1013538300080
115818021258
122759b48494
131379a76966
14926050b84
1554383328a
hex326f210b0

13538300080 has 40 divisors (see below), whose sum is σ = 31484672352. Its totient is φ = 5413922304.

The previous prime is 13538300077. The next prime is 13538300099. The reversal of 13538300080 is 8000383531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×135383000802 (a number of 21 digits) contains 22 as substring.

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, 324069 + ... + 363451.

Almost surely, 213538300080 is an apocalyptic number.

13538300080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13538300080 is an abundant number, since it is smaller than the sum of its proper divisors (17946372272).

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

13538300080 is a wasteful number, since it uses less digits than its factorization.

13538300080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43693 (or 43687 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 13538300080 in words is "thirteen billion, five hundred thirty-eight million, three hundred thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 80 4297 8594 17188 21485 34376 39383 42970 68752 78766 85940 157532 171880 196915 315064 343760 393830 630128 787660 1575320 3150640 169228751 338457502 676915004 846143755 1353830008 1692287510 2707660016 3384575020 6769150040 13538300080