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1070815945 = 5239311443
BaseRepresentation
bin111111110100110…
…101101011001001
32202121221002022211
4333310311223021
54143112102240
6254131145121
735351533243
oct7764655311
92677832284
101070815945
114aa4a1961
1225a7451a1
13140b03204
14a2303093
156401dbea
hex3fd35ac9

1070815945 has 8 divisors (see below), whose sum is σ = 1340847936. Its totient is φ = 819406896.

The previous prime is 1070815897. The next prime is 1070815961. The reversal of 1070815945 is 5495180701.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1070815945 - 213 = 1070807753 is a prime.

It is a super-2 number, since 2×10708159452 = 2293293576132486050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1070815898 and 1070815907.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4655607 + ... + 4655836.

It is an arithmetic number, because the mean of its divisors is an integer number (167605992).

Almost surely, 21070815945 is an apocalyptic number.

It is an amenable number.

1070815945 is a deficient number, since it is larger than the sum of its proper divisors (270031991).

1070815945 is an equidigital number, since it uses as much as digits as its factorization.

1070815945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311471.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 1070815945 is about 32723.3241740505. The cubic root of 1070815945 is about 1023.0690420015.

The spelling of 1070815945 in words is "one billion, seventy million, eight hundred fifteen thousand, nine hundred forty-five".

Divisors: 1 5 23 115 9311443 46557215 214163189 1070815945