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80040070 = 25115313729
BaseRepresentation
bin1001100010101…
…01000010000110
312120121110100001
410301111002012
5130442240240
611535311514
71661220655
oct461250206
9176543301
1080040070
11411a9320
122297b59a
13137756b6
14a8b719c
15706089a
hex4c55086

80040070 has 32 divisors (see below), whose sum is σ = 160146720. Its totient is φ = 28554240.

The previous prime is 80040053. The next prime is 80040089. The reversal of 80040070 is 7004008.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1035 + ... + 12694.

It is an arithmetic number, because the mean of its divisors is an integer number (5004585).

Almost surely, 280040070 is an apocalyptic number.

80040070 is an abundant number, since it is smaller than the sum of its proper divisors (80106650).

80040070 is a wasteful number, since it uses less digits than its factorization.

80040070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13800.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 80040070 is about 8946.5116106782. The cubic root of 80040070 is about 430.9588661637.

Adding to 80040070 its reverse (7004008), we get a palindrome (87044078).

The spelling of 80040070 in words is "eighty million, forty thousand, seventy".

Divisors: 1 2 5 10 11 22 53 55 106 110 265 530 583 1166 2915 5830 13729 27458 68645 137290 151019 302038 727637 755095 1455274 1510190 3638185 7276370 8004007 16008014 40020035 80040070