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26543763040 = 255198731501
BaseRepresentation
bin11000101110001000…
…011010111001100000
32112111212202212120211
4120232020122321200
5413330200404130
620105524543504
71626531156154
oct305610327140
975455685524
1026543763040
1110291298053
125189551b94
13267030c082
1413db3dd064
15a554b3a2a
hex62e21ae60

26543763040 has 48 divisors (see below), whose sum is σ = 66010155120. Its totient is φ = 10058688000.

The previous prime is 26543763013. The next prime is 26543763049. The reversal of 26543763040 is 4036734562.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 26543762984 and 26543763002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26543763049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4362711 + ... + 4368790.

It is an arithmetic number, because the mean of its divisors is an integer number (1375211565).

Almost surely, 226543763040 is an apocalyptic number.

26543763040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26543763040 is an abundant number, since it is smaller than the sum of its proper divisors (39466392080).

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

26543763040 is a wasteful number, since it uses less digits than its factorization.

26543763040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8731535 (or 8731527 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 26543763040 in words is "twenty-six billion, five hundred forty-three million, seven hundred sixty-three thousand, forty".

Divisors: 1 2 4 5 8 10 16 19 20 32 38 40 76 80 95 152 160 190 304 380 608 760 1520 3040 8731501 17463002 34926004 43657505 69852008 87315010 139704016 165898519 174630020 279408032 331797038 349260040 663594076 698520080 829492595 1327188152 1397040160 1658985190 2654376304 3317970380 5308752608 6635940760 13271881520 26543763040