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80220542 = 2437691213
BaseRepresentation
bin1001100100000…
…01000101111110
312120221121220012
410302001011332
5131014024132
611543223222
71662602063
oct462010576
9176847805
1080220542
1141311976
1222a47b12
131380989c
14a922c6a
1570990b2
hex4c8117e

80220542 has 16 divisors (see below), whose sum is σ = 123390960. Its totient is φ = 39094272.

The previous prime is 80220541. The next prime is 80220571. The reversal of 80220542 is 24502208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80220541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65528 + ... + 66740.

It is an arithmetic number, because the mean of its divisors is an integer number (7711935).

Almost surely, 280220542 is an apocalyptic number.

80220542 is a deficient number, since it is larger than the sum of its proper divisors (43170418).

80220542 is a wasteful number, since it uses less digits than its factorization.

80220542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027.

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 80220542 is about 8956.5920974442. The cubic root of 80220542 is about 431.2825274912.

The spelling of 80220542 in words is "eighty million, two hundred twenty thousand, five hundred forty-two".

Divisors: 1 2 43 86 769 1213 1538 2426 33067 52159 66134 104318 932797 1865594 40110271 80220542