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28523679880101 = 3719236734618381
BaseRepresentation
bin1100111110001001011111…
…10011101001001110100101
310201222211121021221011111220
412133010233303221032211
512214312444022130401
6140355333031250553
76002524243413030
oct637045763511645
9121884537834456
1028523679880101
1190a790875510a
1232480b6819a59
1312bba04bcb323
147087a6a2a017
15346e7678a336
hex19f12fce93a5

28523679880101 has 64 divisors (see below), whose sum is σ = 47812446228480. Its totient is φ = 14748076062720.

The previous prime is 28523679880081. The next prime is 28523679880187. The reversal of 28523679880101 is 10108897632582.

It is not a de Polignac number, because 28523679880101 - 210 = 28523679879077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28523679080101) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3866931 + ... + 8485311.

It is an arithmetic number, because the mean of its divisors is an integer number (747069472320).

Almost surely, 228523679880101 is an apocalyptic number.

28523679880101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

28523679880101 is a deficient number, since it is larger than the sum of its proper divisors (19288766348379).

28523679880101 is a wasteful number, since it uses less digits than its factorization.

28523679880101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4619106.

The product of its (nonzero) digits is 11612160, while the sum is 60.

The spelling of 28523679880101 in words is "twenty-eight trillion, five hundred twenty-three billion, six hundred seventy-nine million, eight hundred eighty thousand, one hundred one".

Divisors: 1 3 7 19 21 23 57 69 133 161 399 437 483 673 1311 2019 3059 4711 9177 12787 14133 15479 38361 46437 89509 108353 268527 294101 325059 882303 2058707 4618381 6176121 13855143 32328667 87749239 96986001 106222763 263247717 318668289 614244673 743559341 1842734019 2018232497 2230678023 3108170413 6054697491 9324511239 14127627479 21757192891 42382882437 59055237847 65271578673 71487919499 177165713541 214463758497 413386664929 500415436493 1240159994787 1358270470481 1501246309479 4074811411443 9507893293367 28523679880101