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1242708413580 = 2234531109379599
BaseRepresentation
bin10010000101010111001…
…100011000110010001100
311101210122111010022110000
4102011113030120302030
5130330031323213310
62350520430044300
7155532321141234
oct22052714306214
94353574108400
101242708413580
1143a036558367
12180a18649690
139025780b44a
144420c6b8cc4
15224d436a4c0
hex12157318c8c

1242708413580 has 480 divisors, whose sum is σ = 4078609920000. Its totient is φ = 316389265920.

The previous prime is 1242708413497. The next prime is 1242708413581. The reversal of 1242708413580 is 853148072421.

1242708413580 is a `hidden beast` number, since 1 + 2 + 4 + 27 + 0 + 8 + 41 + 3 + 580 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1242708413581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2074638121 + ... + 2074638719.

It is an arithmetic number, because the mean of its divisors is an integer number (8497104000).

Almost surely, 21242708413580 is an apocalyptic number.

1242708413580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242708413580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2039304960000).

1242708413580 is an abundant number, since it is smaller than the sum of its proper divisors (2835901506420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1242708413580 is a wasteful number, since it uses less digits than its factorization.

1242708413580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The spelling of 1242708413580 in words is "one trillion, two hundred forty-two billion, seven hundred eight million, four hundred thirteen thousand, five hundred eighty".