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1081247104 = 2771206749
BaseRepresentation
bin100000001110010…
…1000010110000000
32210100120001012001
41000130220112000
54203244401404
6255142513344
735536306630
oct10034502600
92710501161
101081247104
11505376a53
12262135854
131430160b2
14a385a6c0
1564dce7a4
hex40728580

1081247104 has 32 divisors (see below), whose sum is σ = 2461770000. Its totient is φ = 463391232.

The previous prime is 1081247077. The next prime is 1081247131. The reversal of 1081247104 is 4017421801.

It is an interprime number because it is at equal distance from previous prime (1081247077) and next prime (1081247131).

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602479 + ... + 604270.

Almost surely, 21081247104 is an apocalyptic number.

1081247104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1081247104 is an abundant number, since it is smaller than the sum of its proper divisors (1380522896).

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

1081247104 is an equidigital number, since it uses as much as digits as its factorization.

1081247104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1206770 (or 1206758 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1081247104 is about 32882.3220591247. The cubic root of 1081247104 is about 1026.3803268106.

Adding to 1081247104 its reverse (4017421801), we get a palindrome (5098668905).

The spelling of 1081247104 in words is "one billion, eighty-one million, two hundred forty-seven thousand, one hundred four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 448 896 1206749 2413498 4826996 8447243 9653992 16894486 19307984 33788972 38615968 67577944 77231936 135155888 154463872 270311776 540623552 1081247104