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83755505 = 5711311801
BaseRepresentation
bin1001111111000…
…00000111110001
312211121012221202
410333200013301
5132420134010
612151100545
72034624101
oct477400761
9184535852
1083755505
1143306829
1224071755
1314476892
14b1a3201
1575466a5
hex4fe01f1

83755505 has 16 divisors (see below), whose sum is σ = 102757248. Its totient is φ = 65520000.

The previous prime is 83755499. The next prime is 83755519. The reversal of 83755505 is 50555738.

It is not a de Polignac number, because 83755505 - 210 = 83754481 is a prime.

It is a Duffinian number.

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, 45605 + ... + 47405.

It is an arithmetic number, because the mean of its divisors is an integer number (6422328).

Almost surely, 283755505 is an apocalyptic number.

It is an amenable number.

83755505 is a deficient number, since it is larger than the sum of its proper divisors (19001743).

83755505 is a wasteful number, since it uses less digits than its factorization.

83755505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 105000, while the sum is 38.

The square root of 83755505 is about 9151.8033741990. The cubic root of 83755505 is about 437.5265921251.

The spelling of 83755505 in words is "eighty-three million, seven hundred fifty-five thousand, five hundred five".

Divisors: 1 5 71 131 355 655 1801 9005 9301 46505 127871 235931 639355 1179655 16751101 83755505