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80072373 = 326690791
BaseRepresentation
bin1001100010111…
…00111010110101
312120200002122110
410301130322311
5130444303443
611540121233
71661414103
oct461347265
9176602573
1080072373
1141220617
1222996219
1313787304
14a8c4c73
15706a233
hex4c5ceb5

80072373 has 4 divisors (see below), whose sum is σ = 106763168. Its totient is φ = 53381580.

The previous prime is 80072359. The next prime is 80072429. The reversal of 80072373 is 37327008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80072373 - 29 = 80071861 is a prime.

It is a super-2 number, since 2×800723732 = 12823169835702258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80072373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80072323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13345393 + ... + 13345398.

It is an arithmetic number, because the mean of its divisors is an integer number (26690792).

Almost surely, 280072373 is an apocalyptic number.

It is an amenable number.

80072373 is a deficient number, since it is larger than the sum of its proper divisors (26690795).

80072373 is a wasteful number, since it uses less digits than its factorization.

80072373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26690794.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 80072373 is about 8948.3167690913. The cubic root of 80072373 is about 431.0168345949.

The spelling of 80072373 in words is "eighty million, seventy-two thousand, three hundred seventy-three".

Divisors: 1 3 26690791 80072373