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10787020640 = 2551154111329
BaseRepresentation
bin10100000101111010…
…01101111101100000
31000211202200102110222
422002331031331200
5134042434130030
64542215142212
7531212106524
oct120275157540
930752612428
1010787020640
114635aa02a0
122110674968
13102ba77666
147448add84
1543201e3e5
hex282f4df60

10787020640 has 96 divisors (see below), whose sum is σ = 27854940960. Its totient is φ = 3914956800.

The previous prime is 10787020627. The next prime is 10787020661. The reversal of 10787020640 is 4602078701.

It is a happy number.

10787020640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 10787020640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 946496 + ... + 957824.

It is an arithmetic number, because the mean of its divisors is an integer number (290155635).

Almost surely, 210787020640 is an apocalyptic number.

10787020640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10787020640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13927470480).

10787020640 is an abundant number, since it is smaller than the sum of its proper divisors (17067920320).

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

10787020640 is a wasteful number, since it uses less digits than its factorization.

10787020640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11896 (or 11888 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 10787020640 in words is "ten billion, seven hundred eighty-seven million, twenty thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 11 16 20 22 32 40 44 55 80 88 110 160 176 220 352 440 541 880 1082 1760 2164 2705 4328 5410 5951 8656 10820 11329 11902 17312 21640 22658 23804 29755 43280 45316 47608 56645 59510 86560 90632 95216 113290 119020 124619 181264 190432 226580 238040 249238 362528 453160 476080 498476 623095 906320 952160 996952 1246190 1812640 1993904 2492380 3987808 4984760 6128989 9969520 12257978 19939040 24515956 30644945 49031912 61289890 67418879 98063824 122579780 134837758 196127648 245159560 269675516 337094395 490319120 539351032 674188790 980638240 1078702064 1348377580 2157404128 2696755160 5393510320 10787020640