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28717300001743 = 17191036481133187
BaseRepresentation
bin1101000011110010001000…
…11101110010101111001111
310202200100101000100110012021
412201321010131302233033
512231001012300023433
6141024313454351011
76022520315323423
oct641710435625717
9122610330313167
1028717300001743
119171a36213271
1232797317bb467
131304050536a42
14713cd3694b83
1534c009a8a22d
hex1a1e44772bcf

28717300001743 has 32 divisors (see below), whose sum is σ = 32322873623040. Its totient is φ = 25352818145280.

The previous prime is 28717300001707. The next prime is 28717300001749. The reversal of 28717300001743 is 34710000371782.

It is a de Polignac number, because none of the positive numbers 2k-28717300001743 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28717300001743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28717300001749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215549796 + ... + 215682982.

It is an arithmetic number, because the mean of its divisors is an integer number (1010089800720).

Almost surely, 228717300001743 is an apocalyptic number.

28717300001743 is a deficient number, since it is larger than the sum of its proper divisors (3605573621297).

28717300001743 is a wasteful number, since it uses less digits than its factorization.

28717300001743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139807.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 28717300001743 in words is "twenty-eight trillion, seven hundred seventeen billion, three hundred million, one thousand, seven hundred forty-three".

Divisors: 1 17 19 103 323 1751 1957 6481 33269 110177 123139 133187 667543 2093363 2264179 2530553 11348231 12683317 13718261 43019401 215616389 233210437 260646959 863184947 4430998303 14674144099 16400513993 88908049541 278808737881 1511436842197 1689252941279 28717300001743