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48817800661 = 71710113929221
BaseRepresentation
bin101101011101110001…
…001000010111010101
311200000012022020000011
4231131301020113111
51244434324110121
634232050520221
73345515313310
oct553561102725
9150005266004
1048817800661
1119781415203
129564b96071
1347acb6b8a6
142511715977
15140abc37e1
hexb5dc485d5

48817800661 has 32 divisors (see below), whose sum is σ = 60089783040. Its totient is φ = 38710656000.

The previous prime is 48817800649. The next prime is 48817800667. The reversal of 48817800661 is 16600871884.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 48817800661 - 215 = 48817767893 is a prime.

It is a super-2 number, since 2×488178006612 (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 (48817800667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1656031 + ... + 1685251.

It is an arithmetic number, because the mean of its divisors is an integer number (1877805720).

Almost surely, 248817800661 is an apocalyptic number.

It is an amenable number.

48817800661 is a deficient number, since it is larger than the sum of its proper divisors (11271982379).

48817800661 is a wasteful number, since it uses less digits than its factorization.

48817800661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29485.

The product of its (nonzero) digits is 516096, while the sum is 49.

The spelling of 48817800661 in words is "forty-eight billion, eight hundred seventeen million, eight hundred thousand, six hundred sixty-one".

Divisors: 1 7 17 101 119 139 707 973 1717 2363 12019 14039 16541 29221 98273 204547 238663 496757 1670641 2951321 3477299 4061719 20659247 28432033 50172457 69049223 351207199 410233619 483344561 2871635333 6973971523 48817800661