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48681655631 = 779337326099
BaseRepresentation
bin101101010101101001…
…110001110101001111
311122122201010100010122
4231111221301311033
51244200000440011
634210344455155
73342243150110
oct552551616517
9148581110118
1048681655631
1119711586454
12952747a4bb
13478a8b10bb
1424db5d6207
1513edc7e3db
hexb55a71d4f

48681655631 has 16 divisors (see below), whose sum is σ = 56359296000. Its totient is φ = 41185149408.

The previous prime is 48681655609. The next prime is 48681655643. The reversal of 48681655631 is 13655618684.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 48681655631 - 26 = 48681655567 is a prime.

It is a super-2 number, since 2×486816556312 (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 (48681655681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852220 + ... + 1878318.

It is an arithmetic number, because the mean of its divisors is an integer number (3522456000).

Almost surely, 248681655631 is an apocalyptic number.

48681655631 is a deficient number, since it is larger than the sum of its proper divisors (7677640369).

48681655631 is a wasteful number, since it uses less digits than its factorization.

48681655631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29558.

The product of its digits is 4147200, while the sum is 53.

The spelling of 48681655631 in words is "forty-eight billion, six hundred eighty-one million, six hundred fifty-five thousand, six hundred thirty-one".

Divisors: 1 7 79 553 3373 23611 26099 182693 266467 1865269 2061821 14432747 88031927 616223489 6954522233 48681655631