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56246908381 = 193780009827
BaseRepresentation
bin110100011000100100…
…111011010111011101
312101011221110222220221
4310120210323113131
51410143202032011
641501154241341
74030564555426
oct643044732735
9171157428827
1056246908381
1121943a05854
12aa98b86251
1353c5037c11
142a1825264d
1516e3000971
hexd1893b5dd

56246908381 has 8 divisors (see below), whose sum is σ = 60807469280. Its totient is φ = 51846367248.

The previous prime is 56246908349. The next prime is 56246908427. The reversal of 56246908381 is 18380964265.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56246908381 - 25 = 56246908349 is a prime.

It is a super-2 number, since 2×562469083812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56246908331) 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, 40004211 + ... + 40005616.

It is an arithmetic number, because the mean of its divisors is an integer number (7600933660).

Almost surely, 256246908381 is an apocalyptic number.

It is an amenable number.

56246908381 is a deficient number, since it is larger than the sum of its proper divisors (4560560899).

56246908381 is a wasteful number, since it uses less digits than its factorization.

56246908381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80009883.

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 56246908381 in words is "fifty-six billion, two hundred forty-six million, nine hundred eight thousand, three hundred eighty-one".

Divisors: 1 19 37 703 80009827 1520186713 2960363599 56246908381