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64124051300 = 2252641240513
BaseRepresentation
bin111011101110000101…
…110101111101100100
320010111220201022120222
4323232011311331210
52022311224120200
645242544543512
74430024304611
oct735605657544
9203456638528
1064124051300
112521639a921
1210517021b98
13607bc9382a
143164499508
151a0482dd85
hexeee175f64

64124051300 has 18 divisors (see below), whose sum is σ = 139149191538. Its totient is φ = 25649620480.

The previous prime is 64124051261. The next prime is 64124051347. The reversal of 64124051300 is 315042146.

It can be written as a sum of positive squares in 3 ways, for example, as 21308992576 + 42815058724 = 145976^2 + 206918^2 .

It is a super-2 number, since 2×641240513002 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64124051300.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 320620157 + ... + 320620356.

It is an arithmetic number, because the mean of its divisors is an integer number (7730510641).

Almost surely, 264124051300 is an apocalyptic number.

It is an amenable number.

64124051300 is an abundant number, since it is smaller than the sum of its proper divisors (75025140238).

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

64124051300 is a wasteful number, since it uses less digits than its factorization.

64124051300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641240527 (or 641240520 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 64124051300 its reverse (315042146), we get a palindrome (64439093446).

The spelling of 64124051300 in words is "sixty-four billion, one hundred twenty-four million, fifty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 641240513 1282481026 2564962052 3206202565 6412405130 12824810260 16031012825 32062025650 64124051300