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85983807 = 37131797191
BaseRepresentation
bin1010010000000…
…00001000111111
312222210102121110
411020000020333
5134002440212
612310533103
72062564440
oct510001077
9188712543
1085983807
11445989a8
1224967193
1314a76bc0
14b5c32c7
157836a3c
hex520023f

85983807 has 64 divisors (see below), whose sum is σ = 151732224. Its totient is φ = 42024960.

The previous prime is 85983787. The next prime is 85983817. The reversal of 85983807 is 70838958.

It is a happy number.

It is not a de Polignac number, because 85983807 - 26 = 85983743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85983817) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 450082 + ... + 450272.

It is an arithmetic number, because the mean of its divisors is an integer number (2370816).

Almost surely, 285983807 is an apocalyptic number.

85983807 is a deficient number, since it is larger than the sum of its proper divisors (65748417).

85983807 is a wasteful number, since it uses less digits than its factorization.

85983807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 85983807 is about 9272.7453863459. The cubic root of 85983807 is about 441.3727906361.

It can be divided in two parts, 859 and 83807, that added together give a triangular number (84666 = T411).

The spelling of 85983807 in words is "eighty-five million, nine hundred eighty-three thousand, eight hundred seven".

Divisors: 1 3 7 13 17 21 39 51 91 97 119 191 221 273 291 357 573 663 679 1261 1337 1547 1649 2037 2483 3247 3783 4011 4641 4947 7449 8827 9741 11543 17381 18527 21437 22729 26481 34629 42211 52143 55581 64311 68187 126633 129689 150059 240851 295477 314959 389067 450177 722553 886431 944877 1685957 2204713 4094467 5057871 6614139 12283401 28661269 85983807