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80740516 = 2220185129
BaseRepresentation
bin1001101000000…
…00000010100100
312121221001011111
410310000002210
5131132144031
612002314404
72000166043
oct464000244
9177831144
1080740516
11416375aa
1223058a04
131395c46c
14aa1a55a
15714d1b1
hex4d000a4

80740516 has 6 divisors (see below), whose sum is σ = 141295910. Its totient is φ = 40370256.

The previous prime is 80740507. The next prime is 80740529. The reversal of 80740516 is 61504708.

It can be written as a sum of positive squares in only one way, i.e., 44089600 + 36650916 = 6640^2 + 6054^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10092561 + ... + 10092568.

Almost surely, 280740516 is an apocalyptic number.

It is an amenable number.

80740516 is a deficient number, since it is larger than the sum of its proper divisors (60555394).

80740516 is a wasteful number, since it uses less digits than its factorization.

80740516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20185133 (or 20185131 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 80740516 is about 8985.5726584342. The cubic root of 80740516 is about 432.2123513049.

The spelling of 80740516 in words is "eighty million, seven hundred forty thousand, five hundred sixteen".

Divisors: 1 2 4 20185129 40370258 80740516