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1081704072 = 23373617411
BaseRepresentation
bin100000001111001…
…0111111010001000
32210101102021000210
41000132113322020
54203404012242
6255200401120
735543222121
oct10036277210
92711367023
101081704072
11505659309
122623161a0
131431460a7
14a3939048
1564e6ed9c
hex40797e88

1081704072 has 32 divisors (see below), whose sum is σ = 2741309280. Its totient is φ = 355628160.

The previous prime is 1081704037. The next prime is 1081704077. The reversal of 1081704072 is 2704071801.

It is not an unprimeable number, because it can be changed into a prime (1081704077) 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, 306954 + ... + 310457.

It is an arithmetic number, because the mean of its divisors is an integer number (85665915).

Almost surely, 21081704072 is an apocalyptic number.

1081704072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1081704072 is an abundant number, since it is smaller than the sum of its proper divisors (1659605208).

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

1081704072 is a wasteful number, since it uses less digits than its factorization.

1081704072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617493 (or 617489 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 30.

The square root of 1081704072 is about 32889.2698611568. The cubic root of 1081704072 is about 1026.5248996544.

Adding to 1081704072 its reverse (2704071801), we get a palindrome (3785775873).

The spelling of 1081704072 in words is "one billion, eighty-one million, seven hundred four thousand, seventy-two".

Divisors: 1 2 3 4 6 8 12 24 73 146 219 292 438 584 876 1752 617411 1234822 1852233 2469644 3704466 4939288 7408932 14817864 45071003 90142006 135213009 180284012 270426018 360568024 540852036 1081704072