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40764081800 = 235213138111353
BaseRepresentation
bin100101111101101110…
…101000011010001000
310220012220210220200102
4211331232220122020
51131441101104200
630420551424532
72642112656351
oct457556503210
9126186726612
1040764081800
1116319297002
127a97985148
133ac846a780
141d89c66d28
1510d8b166d5
hex97dba8688

40764081800 has 96 divisors (see below), whose sum is σ = 102149894280. Its totient is φ = 15039129600.

The previous prime is 40764081793. The next prime is 40764081823. The reversal of 40764081800 is 818046704.

40764081800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 289884676 + 40474197124 = 17026^2 + 201182^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3584924 + ... + 3596276.

Almost surely, 240764081800 is an apocalyptic number.

40764081800 is a gapful number since it is divisible by the number (40) 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 40764081800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51074947140).

40764081800 is an abundant number, since it is smaller than the sum of its proper divisors (61385812480).

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

40764081800 is a wasteful number, since it uses less digits than its factorization.

40764081800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12763 (or 12754 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 38.

The spelling of 40764081800 in words is "forty billion, seven hundred sixty-four million, eighty-one thousand, eight hundred".

Divisors: 1 2 4 5 8 10 13 20 25 26 40 50 52 65 100 104 130 200 260 325 520 650 1300 1381 2600 2762 5524 6905 11048 11353 13810 17953 22706 27620 34525 35906 45412 55240 56765 69050 71812 89765 90824 113530 138100 143624 147589 179530 227060 276200 283825 295178 359060 448825 454120 567650 590356 718120 737945 897650 1135300 1180712 1475890 1795300 2270600 2951780 3590600 3689725 5903560 7379450 14758900 15678493 29517800 31356986 62713972 78392465 125427944 156784930 203820409 313569860 391962325 407640818 627139720 783924650 815281636 1019102045 1567849300 1630563272 2038204090 3135698600 4076408180 5095510225 8152816360 10191020450 20382040900 40764081800