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80540970 = 2354316229
BaseRepresentation
bin1001100110011…
…11010100101010
312121112220102220
410303033110222
5131104302340
611554134510
71665405216
oct463172452
9177486386
1080540970
1141510694
1222b81436
13138bc6a3
14a9a7946
15710ded0
hex4ccf52a

80540970 has 32 divisors (see below), whose sum is σ = 193777920. Its totient is φ = 21424320.

The previous prime is 80540969. The next prime is 80540989. The reversal of 80540970 is 7904508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9816 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (6055560).

Almost surely, 280540970 is an apocalyptic number.

80540970 is an abundant number, since it is smaller than the sum of its proper divisors (113236950).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80540970 is a wasteful number, since it uses less digits than its factorization.

80540970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6670.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 80540970 is about 8974.4621008727. The cubic root of 80540970 is about 431.8559940967.

The spelling of 80540970 in words is "eighty million, five hundred forty thousand, nine hundred seventy".

Divisors: 1 2 3 5 6 10 15 30 431 862 1293 2155 2586 4310 6229 6465 12458 12930 18687 31145 37374 62290 93435 186870 2684699 5369398 8054097 13423495 16108194 26846990 40270485 80540970