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52981458040 = 2357189219493
BaseRepresentation
bin110001010101111100…
…001110010001111000
312001202100221221011201
4301111330032101320
51332001223124130
640201144303544
73553633651150
oct612574162170
9161670857151
1052981458040
1120518719665
12a327471bb4
134cc4661694
1427c86ab760
1515a14c4bca
hexc55f0e478

52981458040 has 32 divisors (see below), whose sum is σ = 136238035680. Its totient is φ = 18165071232.

The previous prime is 52981458037. The next prime is 52981458043. The reversal of 52981458040 is 4085418925.

52981458040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52981458037) and next prime (52981458043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52981458043) 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, 94609467 + ... + 94610026.

It is an arithmetic number, because the mean of its divisors is an integer number (4257438615).

Almost surely, 252981458040 is an apocalyptic number.

It is an amenable number.

52981458040 is an abundant number, since it is smaller than the sum of its proper divisors (83256577640).

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

52981458040 is a wasteful number, since it uses less digits than its factorization.

52981458040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189219511 (or 189219507 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 52981458040 in words is "fifty-two billion, nine hundred eighty-one million, four hundred fifty-eight thousand, forty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 189219493 378438986 756877972 946097465 1324536451 1513755944 1892194930 2649072902 3784389860 5298145804 6622682255 7568779720 10596291608 13245364510 26490729020 52981458040