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80540834 = 21167101541
BaseRepresentation
bin1001100110011…
…11010010100010
312121112220020212
410303033102202
5131104301314
611554134122
71665404633
oct463172242
9177486225
1080540834
1141510580
1222b81342
13138bc5ca
14a9a788a
15710de3e
hex4ccf4a2

80540834 has 32 divisors (see below), whose sum is σ = 135335232. Its totient is φ = 35640000.

The previous prime is 80540819. The next prime is 80540879. The reversal of 80540834 is 43804508.

It is a super-3 number, since 3×805408343 (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80540834.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148604 + ... + 149144.

It is an arithmetic number, because the mean of its divisors is an integer number (4229226).

Almost surely, 280540834 is an apocalyptic number.

80540834 is a deficient number, since it is larger than the sum of its proper divisors (54794398).

80540834 is a wasteful number, since it uses less digits than its factorization.

80540834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 80540834 is about 8974.4545238137. The cubic root of 80540834 is about 431.8557510219.

The spelling of 80540834 in words is "eighty million, five hundred forty thousand, eight hundred thirty-four".

Divisors: 1 2 11 22 67 101 134 202 541 737 1082 1111 1474 2222 5951 6767 11902 13534 36247 54641 72494 74437 109282 148874 398717 601051 797434 1202102 3660947 7321894 40270417 80540834