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52513214440 = 2356719594483
BaseRepresentation
bin110000111010000010…
…000000111111101000
312000112201212200201011
4300322002000333220
51330021340330230
640042500233304
73536216646361
oct607202007750
9160481780634
1052513214440
11202a8382285
12a21669b834
134c4b647b6b
142782420b68
151575330e2a
hexc3a080fe8

52513214440 has 32 divisors (see below), whose sum is σ = 119918242080. Its totient is φ = 20691772992.

The previous prime is 52513214419. The next prime is 52513214441. The reversal of 52513214440 is 4441231525.

It is not an unprimeable number, because it can be changed into a prime (52513214441) 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, 9794562 + ... + 9799921.

It is an arithmetic number, because the mean of its divisors is an integer number (3747445065).

Almost surely, 252513214440 is an apocalyptic number.

It is an amenable number.

52513214440 is an abundant number, since it is smaller than the sum of its proper divisors (67405027640).

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

52513214440 is a wasteful number, since it uses less digits than its factorization.

52513214440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19594561 (or 19594557 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 52513214440 its reverse (4441231525), we get a palindrome (56954445965).

The spelling of 52513214440 in words is "fifty-two billion, five hundred thirteen million, two hundred fourteen thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 67 134 268 335 536 670 1340 2680 19594483 39188966 78377932 97972415 156755864 195944830 391889660 783779320 1312830361 2625660722 5251321444 6564151805 10502642888 13128303610 26256607220 52513214440