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80199542 = 2311293541
BaseRepresentation
bin1001100011110…
…11111101110110
312120220120002102
410301323331312
5131012341132
611542542102
71662453623
oct461737566
9176816072
1080199542
11412a8115
1222a37932
1313800167
14a91934a
157092c62
hex4c7bf76

80199542 has 8 divisors (see below), whose sum is σ = 124180032. Its totient is φ = 38806200.

The previous prime is 80199517. The next prime is 80199569. The reversal of 80199542 is 24599108.

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

It is a junction number, because it is equal to n+sod(n) for n = 80199496 and 80199505.

It is a congruent number.

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, 646709 + ... + 646832.

It is an arithmetic number, because the mean of its divisors is an integer number (15522504).

Almost surely, 280199542 is an apocalyptic number.

80199542 is a deficient number, since it is larger than the sum of its proper divisors (43980490).

80199542 is a wasteful number, since it uses less digits than its factorization.

80199542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293574.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 80199542 is about 8955.4196998242. The cubic root of 80199542 is about 431.2448907327.

The spelling of 80199542 in words is "eighty million, one hundred ninety-nine thousand, five hundred forty-two".

Divisors: 1 2 31 62 1293541 2587082 40099771 80199542