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561220461000453 = 31494971251352783
BaseRepresentation
bin111111110011011010101001…
…0001101111111011100000101
32201121010011002212122210100210
41333212311102031333130011
51042030014001004003303
65305341042011030033
7226132561130430042
oct17746652215773405
92647104085583323
10561220461000453
1115290529627a4a1
1252b40350a3b319
131b11cb29883527
149c833028c61c9
1544d397361a203
hex1fe6d5237f705

561220461000453 has 8 divisors (see below), whose sum is σ = 748298954009728. Its totient is φ = 374144470995744.

The previous prime is 561220461000421. The next prime is 561220461000569. The reversal of 561220461000453 is 354000164022165.

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

It is not a de Polignac number, because 561220461000453 - 25 = 561220461000421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561220461000253) 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, 625227901 + ... + 626124882.

It is an arithmetic number, because the mean of its divisors is an integer number (93537369251216).

Almost surely, 2561220461000453 is an apocalyptic number.

It is an amenable number.

561220461000453 is a deficient number, since it is larger than the sum of its proper divisors (187078493009275).

561220461000453 is a wasteful number, since it uses less digits than its factorization.

561220461000453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251502283.

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 561220461000453 in words is "five hundred sixty-one trillion, two hundred twenty billion, four hundred sixty-one million, four hundred fifty-three", and thus it is an aban number.

Divisors: 1 3 149497 448491 1251352783 3754058349 187073487000151 561220461000453