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80575340 = 22529138923
BaseRepresentation
bin1001100110101…
…11101101101100
312121121122120212
410303113231230
5131111402330
611555001552
71665610346
oct463275554
9177548525
1080575340
114153449a
1222b992b8
1313902221
14a9b6296
157119295
hex4cd7b6c

80575340 has 24 divisors (see below), whose sum is σ = 175044240. Its totient is φ = 31118528.

The previous prime is 80575337. The next prime is 80575351. The reversal of 80575340 is 4357508.

It is a happy number.

It is a super-2 number, since 2×805753402 = 12984770832231200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80575297 and 80575306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68882 + ... + 70041.

It is an arithmetic number, because the mean of its divisors is an integer number (7293510).

Almost surely, 280575340 is an apocalyptic number.

It is an amenable number.

80575340 is an abundant number, since it is smaller than the sum of its proper divisors (94468900).

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

80575340 is a wasteful number, since it uses less digits than its factorization.

80575340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138961 (or 138959 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 80575340 is about 8976.3767746235. The cubic root of 80575340 is about 431.9174153406.

The spelling of 80575340 in words is "eighty million, five hundred seventy-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 138923 277846 555692 694615 1389230 2778460 4028767 8057534 16115068 20143835 40287670 80575340