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80803057405870 = 2553735172073787
BaseRepresentation
bin10010010111110101101101…
…100010001000111110101110
3101121002200211000001002000001
4102113311231202020332232
541042334130143441440
6443504225003454514
723006554042336162
oct2227655542107656
9347080730032001
1080803057405870
1123823425413148
12909021052743a
133611907372397
1415d4c62dc6ca2
15951d1635db9a
hex497d6d888fae

80803057405870 has 32 divisors (see below), whose sum is σ = 148191845290848. Its totient is φ = 31710941927808.

The previous prime is 80803057405843. The next prime is 80803057405871. The reversal of 80803057405870 is 7850475030808.

It is a happy number.

It is a super-2 number, since 2×808030574058702 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80803057405871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37927117 + ... + 40000903.

It is an arithmetic number, because the mean of its divisors is an integer number (4630995165339).

Almost surely, 280803057405870 is an apocalyptic number.

80803057405870 is a deficient number, since it is larger than the sum of its proper divisors (67388787884978).

80803057405870 is a wasteful number, since it uses less digits than its factorization.

80803057405870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147364.

The product of its (nonzero) digits is 7526400, while the sum is 55.

The spelling of 80803057405870 in words is "eighty trillion, eight hundred three billion, fifty-seven million, four hundred five thousand, eight hundred seventy".

Divisors: 1 2 5 10 53 106 265 530 73517 147034 367585 735170 2073787 3896401 4147574 7792802 10368935 19482005 20737870 38964010 109910711 219821422 549553555 1099107110 152458598879 304917197758 762292994395 1524585988790 8080305740587 16160611481174 40401528702935 80803057405870