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1081392970 = 25715448471
BaseRepresentation
bin100000001110100…
…1011111101001010
32210100211110021111
41000131023331022
54203314033340
6255150000534
735540455120
oct10035137512
92710743244
101081392970
115054665a9
122621a614a
131430675c8
14a3897910
1564e0caea
hex4074bf4a

1081392970 has 16 divisors (see below), whose sum is σ = 2224579968. Its totient is φ = 370763280.

The previous prime is 1081392953. The next prime is 1081393003. The reversal of 1081392970 is 792931801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7724166 + ... + 7724305.

It is an arithmetic number, because the mean of its divisors is an integer number (139036248).

Almost surely, 21081392970 is an apocalyptic number.

1081392970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1081392970 is an abundant number, since it is smaller than the sum of its proper divisors (1143186998).

1081392970 is a wasteful number, since it uses less digits than its factorization.

1081392970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15448485.

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1081392970 is about 32884.5399846189. The cubic root of 1081392970 is about 1026.4264794616.

The spelling of 1081392970 in words is "one billion, eighty-one million, three hundred ninety-two thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 70 15448471 30896942 77242355 108139297 154484710 216278594 540696485 1081392970