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80740995 = 3553101561
BaseRepresentation
bin1001101000000…
…00001010000011
312121221001211020
410310000022003
5131132202440
612002320523
72000200326
oct464001203
9177831736
1080740995
11416379a5
1223059143
131395c74a
14aa1a7bd
15714d3d0
hex4d00283

80740995 has 16 divisors (see below), whose sum is σ = 131624352. Its totient is φ = 42248960.

The previous prime is 80740991. The next prime is 80741009. The reversal of 80740995 is 59904708.

It is not a de Polignac number, because 80740995 - 22 = 80740991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80740991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49986 + ... + 51575.

It is an arithmetic number, because the mean of its divisors is an integer number (8226522).

Almost surely, 280740995 is an apocalyptic number.

80740995 is a deficient number, since it is larger than the sum of its proper divisors (50883357).

80740995 is a wasteful number, since it uses less digits than its factorization.

80740995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101622.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 80740995 is about 8985.5993122329. The cubic root of 80740995 is about 432.2132060155.

The spelling of 80740995 in words is "eighty million, seven hundred forty thousand, nine hundred ninety-five".

Divisors: 1 3 5 15 53 159 265 795 101561 304683 507805 1523415 5382733 16148199 26913665 80740995