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80307373 = 731100101
BaseRepresentation
bin1001100100101…
…10010010101101
312121010001000011
410302112102231
5131024313443
611545133221
71663413166
oct462262255
9177101004
1080307373
1141371133
1222a8a211
131383a273
14a94676d
1570b4b9d
hex4c964ad

80307373 has 4 divisors (see below), whose sum is σ = 81407548. Its totient is φ = 79207200.

The previous prime is 80307361. The next prime is 80307377. The reversal of 80307373 is 37370308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43072969 + 37234404 = 6563^2 + 6102^2 .

It is a cyclic number.

It is not a de Polignac number, because 80307373 - 213 = 80299181 is a prime.

It is a super-2 number, since 2×803073732 = 12898548316322258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80307377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 549978 + ... + 550123.

It is an arithmetic number, because the mean of its divisors is an integer number (20351887).

Almost surely, 280307373 is an apocalyptic number.

It is an amenable number.

80307373 is a deficient number, since it is larger than the sum of its proper divisors (1100175).

80307373 is a wasteful number, since it uses less digits than its factorization.

80307373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1100174.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 80307373 is about 8961.4381100357. The cubic root of 80307373 is about 431.4380786289.

It can be divided in two parts, 8030737 and 3, that multiplied together give a triangular number (24092211 = T6941).

The spelling of 80307373 in words is "eighty million, three hundred seven thousand, three hundred seventy-three".

Divisors: 1 73 1100101 80307373