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80306746 = 2133088721
BaseRepresentation
bin1001100100101…
…10001000111010
312121010000010221
410302112020322
5131024303441
611545130254
71663411312
oct462261072
9177100127
1080306746
1141370713
1222a8998a
1313839bb0
14a946442
1570b48d1
hex4c9623a

80306746 has 8 divisors (see below), whose sum is σ = 129726324. Its totient is φ = 37064640.

The previous prime is 80306719. The next prime is 80306767. The reversal of 80306746 is 64760308.

It can be written as a sum of positive squares in 2 ways, for example, as 80299521 + 7225 = 8961^2 + 85^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544335 + ... + 1544386.

Almost surely, 280306746 is an apocalyptic number.

80306746 is a deficient number, since it is larger than the sum of its proper divisors (49419578).

80306746 is a wasteful number, since it uses less digits than its factorization.

80306746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088736.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 80306746 is about 8961.4031267430. The cubic root of 80306746 is about 431.4369558081.

The spelling of 80306746 in words is "eighty million, three hundred six thousand, seven hundred forty-six".

Divisors: 1 2 13 26 3088721 6177442 40153373 80306746