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102768792064 = 294128317299
BaseRepresentation
bin101111110110101111…
…1110101001000000000
3100211021010121112220221
41133231133311020000
53140432302321224
6115113351512424
710265464214401
oct1375537651000
9324233545827
10102768792064
113a647338604
1217b01088714
1398ca330c43
144d8ca7d9a8
152a1735c6e4
hex17ed7f5200

102768792064 has 80 divisors (see below), whose sum is σ = 211100551200. Its totient is φ = 49951088640.

The previous prime is 102768792059. The next prime is 102768792101. The reversal of 102768792064 is 460297867201.

It is a super-2 number, since 2×1027687920642 (a number of 23 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, 5932087 + ... + 5949385.

It is an arithmetic number, because the mean of its divisors is an integer number (2638756890).

Almost surely, 2102768792064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102768792064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105550275600).

102768792064 is an abundant number, since it is smaller than the sum of its proper divisors (108331759136).

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

102768792064 is an equidigital number, since it uses as much as digits as its factorization.

102768792064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17641 (or 17625 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 52.

The spelling of 102768792064 in words is "one hundred two billion, seven hundred sixty-eight million, seven hundred ninety-two thousand, sixty-four".

Divisors: 1 2 4 8 16 32 41 64 82 128 164 256 283 328 512 566 656 1132 1312 2264 2624 4528 5248 9056 10496 11603 17299 18112 20992 23206 34598 36224 46412 69196 72448 92824 138392 144896 185648 276784 371296 553568 709259 742592 1107136 1418518 1485184 2214272 2837036 2970368 4428544 4895617 5674072 5940736 8857088 9791234 11348144 19582468 22696288 39164936 45392576 78329872 90785152 156659744 181570304 200720297 313319488 363140608 401440594 626638976 802881188 1253277952 1605762376 2506555904 3211524752 6423049504 12846099008 25692198016 51384396032 102768792064