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28089368352 = 2533191711097
BaseRepresentation
bin11010001010010000…
…011011111100100000
32200111121002202111000
4122022100123330200
5430011334241402
620523140352000
72013036456123
oct321220337440
980447082430
1028089368352
1110a04797211
12553b0a5600
1328585ab326
1415067b43ba
15ae601ac1c
hex68a41bf20

28089368352 has 96 divisors (see below), whose sum is σ = 86239339200. Its totient is φ = 8870321664.

The previous prime is 28089368341. The next prime is 28089368381. The reversal of 28089368352 is 25386398082.

28089368352 is a `hidden beast` number, since 280 + 8 + 9 + 3 + 6 + 8 + 352 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×280893683522 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 839133 + ... + 871964.

It is an arithmetic number, because the mean of its divisors is an integer number (898326450).

Almost surely, 228089368352 is an apocalyptic number.

It is an amenable number.

28089368352 is an abundant number, since it is smaller than the sum of its proper divisors (58149970848).

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

28089368352 is a wasteful number, since it uses less digits than its factorization.

28089368352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1711135 (or 1711121 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 54.

The spelling of 28089368352 in words is "twenty-eight billion, eighty-nine million, three hundred sixty-eight thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 27 32 36 38 48 54 57 72 76 96 108 114 144 152 171 216 228 288 304 342 432 456 513 608 684 864 912 1026 1368 1824 2052 2736 4104 5472 8208 16416 1711097 3422194 5133291 6844388 10266582 13688776 15399873 20533164 27377552 30799746 32510843 41066328 46199619 54755104 61599492 65021686 82132656 92399238 97532529 123198984 130043372 164265312 184798476 195065058 246397968 260086744 292597587 369596952 390130116 492795936 520173488 585195174 739193904 780260232 877792761 1040346976 1170390348 1478387808 1560520464 1755585522 2340780696 3121040928 3511171044 4681561392 7022342088 9363122784 14044684176 28089368352