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488561083961 = 1113143891931
BaseRepresentation
bin1110001110000001000…
…00101000011000111001
31201201001122212120101112
413013000200220120321
531001033114141321
61012235235330105
750203666460036
oct7070040503071
91651048776345
10488561083961
11179219aa4585
127a82a150935
13370c03077c2
1419909d3c38d
15ca96794a5b
hex71c0828639

488561083961 has 4 divisors (see below), whose sum is σ = 488604987024. Its totient is φ = 488517180900.

The previous prime is 488561083949. The next prime is 488561084023. The reversal of 488561083961 is 169380165884.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 488561083961 - 218 = 488560821817 is a prime.

It is a super-2 number, since 2×4885610839612 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 488561083961.

It is not an unprimeable number, because it can be changed into a prime (488561083061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21934835 + ... + 21957096.

It is an arithmetic number, because the mean of its divisors is an integer number (122151246756).

Almost surely, 2488561083961 is an apocalyptic number.

It is an amenable number.

488561083961 is a deficient number, since it is larger than the sum of its proper divisors (43903063).

488561083961 is a wasteful number, since it uses less digits than its factorization.

488561083961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43903062.

The product of its (nonzero) digits is 9953280, while the sum is 59.

The spelling of 488561083961 in words is "four hundred eighty-eight billion, five hundred sixty-one million, eighty-three thousand, nine hundred sixty-one".

Divisors: 1 11131 43891931 488561083961