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61896234848 = 2571201230077
BaseRepresentation
bin111001101001010011…
…011001011101100000
312220202122200111221112
4321221103121131200
52003230414003343
644233523042452
74320563213120
oct715123313540
9186678614845
1061896234848
11242828a13a8
12bbb4b10428
135ab5573046
142dd265ac80
151923e6a218
hexe694d9760

61896234848 has 48 divisors (see below), whose sum is σ = 139383093024. Its totient is φ = 26504755200.

The previous prime is 61896234839. The next prime is 61896234871. The reversal of 61896234848 is 84843269816.

It is a happy number.

61896234848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×618962348482 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153986 + ... + 384062.

It is an arithmetic number, because the mean of its divisors is an integer number (2903814438).

Almost surely, 261896234848 is an apocalyptic number.

It is an amenable number.

61896234848 is an abundant number, since it is smaller than the sum of its proper divisors (77486858176).

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

61896234848 is a wasteful number, since it uses less digits than its factorization.

61896234848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231295 (or 231287 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 59.

The spelling of 61896234848 in words is "sixty-one billion, eight hundred ninety-six million, two hundred thirty-four thousand, eight hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 1201 2402 4804 8407 9608 16814 19216 33628 38432 67256 134512 230077 269024 460154 920308 1610539 1840616 3221078 3681232 6442156 7362464 12884312 25768624 51537248 276322477 552644954 1105289908 1934257339 2210579816 3868514678 4421159632 7737029356 8842319264 15474058712 30948117424 61896234848