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34542012440 = 2351366426947
BaseRepresentation
bin100000001010110111…
…010100100000011000
310022011021220001010002
4200022313110200120
51031220223344230
623511323112132
72331661155425
oct401267244030
9108137801102
1034542012440
111371607a221
126840072648
13334638b420
14195976cd4c
15d72765545
hex80add4818

34542012440 has 32 divisors (see below), whose sum is σ = 83697954480. Its totient is φ = 12753973632.

The previous prime is 34542012419. The next prime is 34542012457. The reversal of 34542012440 is 4421024543.

It is a super-2 number, since 2×345420124402 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33212954 + ... + 33213993.

Almost surely, 234542012440 is an apocalyptic number.

It is an amenable number.

34542012440 is an abundant number, since it is smaller than the sum of its proper divisors (49155942040).

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

34542012440 is a wasteful number, since it uses less digits than its factorization.

34542012440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66426971 (or 66426967 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 34542012440 its reverse (4421024543), we get a palindrome (38963036983).

The spelling of 34542012440 in words is "thirty-four billion, five hundred forty-two million, twelve thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 20 26 40 52 65 104 130 260 520 66426947 132853894 265707788 332134735 531415576 664269470 863550311 1328538940 1727100622 2657077880 3454201244 4317751555 6908402488 8635503110 17271006220 34542012440