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80444955 = 35192771019
BaseRepresentation
bin1001100101101…
…11111000011011
312121101000201210
410302313320123
5131043214310
611552114203
71664525253
oct462677033
9177330653
1080444955
1141455538
1222b35963
1313887a86
14a980963
1570e0820
hex4cb7e1b

80444955 has 32 divisors (see below), whose sum is σ = 136108800. Its totient is φ = 40459392.

The previous prime is 80444929. The next prime is 80444971. The reversal of 80444955 is 55944408.

It is not a de Polignac number, because 80444955 - 28 = 80444699 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78436 + ... + 79454.

It is an arithmetic number, because the mean of its divisors is an integer number (4253400).

Almost surely, 280444955 is an apocalyptic number.

80444955 is a deficient number, since it is larger than the sum of its proper divisors (55663845).

80444955 is a wasteful number, since it uses less digits than its factorization.

80444955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 80444955 is about 8969.1111599757. Note that the first 4 decimals coincide. The cubic root of 80444955 is about 431.6843169109.

The spelling of 80444955 in words is "eighty million, four hundred forty-four thousand, nine hundred fifty-five".

Divisors: 1 3 5 15 19 57 95 277 285 831 1019 1385 3057 4155 5095 5263 15285 15789 19361 26315 58083 78945 96805 282263 290415 846789 1411315 4233945 5362997 16088991 26814985 80444955