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80309704 = 2310038713
BaseRepresentation
bin1001100100101…
…10110111001000
312121010011012111
410302112313020
5131024402304
611545152104
71663423036
oct462266710
9177104174
1080309704
1141372962
1222a8b634
131383b347
14a947556
1570b5704
hex4c96dc8

80309704 has 8 divisors (see below), whose sum is σ = 150580710. Its totient is φ = 40154848.

The previous prime is 80309701. The next prime is 80309707. The reversal of 80309704 is 40790308.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80309701) and next prime (80309707).

It can be written as a sum of positive squares in only one way, i.e., 70056900 + 10252804 = 8370^2 + 3202^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (80309701) 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 as a sum of consecutive naturals, namely, 5019349 + ... + 5019364.

Almost surely, 280309704 is an apocalyptic number.

It is an amenable number.

80309704 is a deficient number, since it is larger than the sum of its proper divisors (70271006).

80309704 is a wasteful number, since it uses less digits than its factorization.

80309704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10038719 (or 10038715 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 80309704 is about 8961.5681663423. The cubic root of 80309704 is about 431.4422528925.

The spelling of 80309704 in words is "eighty million, three hundred nine thousand, seven hundred four".

Divisors: 1 2 4 8 10038713 20077426 40154852 80309704