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84289953 = 311672569
BaseRepresentation
bin1010000011000…
…10100110100001
312212121101002010
411001202212201
5133034234303
612210343133
72042311206
oct501424641
9185541063
1084289953
1143641320
122428aaa9
1314602c17
14b2a1cad
1575eec03
hex50629a1

84289953 has 24 divisors (see below), whose sum is σ = 124679520. Its totient is φ = 50233920.

The previous prime is 84289951. The next prime is 84289957. The reversal of 84289953 is 35998248.

It is not a de Polignac number, because 84289953 - 21 = 84289951 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (84289951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147853 + ... + 148421.

It is an arithmetic number, because the mean of its divisors is an integer number (5194980).

Almost surely, 284289953 is an apocalyptic number.

It is an amenable number.

84289953 is a deficient number, since it is larger than the sum of its proper divisors (40389567).

84289953 is a wasteful number, since it uses less digits than its factorization.

84289953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717 (or 650 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 84289953 is about 9180.9559959734. The cubic root of 84289953 is about 438.4552458954.

It can be divided in two parts, 8428 and 9953, that added together give a palindrome (18381).

The spelling of 84289953 in words is "eighty-four million, two hundred eighty-nine thousand, nine hundred fifty-three".

Divisors: 1 3 11 33 67 201 569 737 1707 2211 4489 6259 13467 18777 38123 49379 114369 148137 419353 1258059 2554241 7662723 28096651 84289953