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84231069 = 3132159771
BaseRepresentation
bin1010000010101…
…00001110011101
312212111101022020
411001110032131
5133030343234
612205210353
72041644426
oct501241635
9185441266
1084231069
114360105a
12242609b9
13145b2190
14b28864d
1575dc549
hex505439d

84231069 has 8 divisors (see below), whose sum is σ = 120947232. Its totient is φ = 51834480.

The previous prime is 84231029. The next prime is 84231079. The reversal of 84231069 is 96013248.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84231069 - 27 = 84230941 is a prime.

It is a super-2 number, since 2×842310692 = 14189745969765522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84231019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1079847 + ... + 1079924.

It is an arithmetic number, because the mean of its divisors is an integer number (15118404).

Almost surely, 284231069 is an apocalyptic number.

It is an amenable number.

84231069 is a deficient number, since it is larger than the sum of its proper divisors (36716163).

84231069 is a wasteful number, since it uses less digits than its factorization.

84231069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2159787.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 84231069 is about 9177.7485801257. The cubic root of 84231069 is about 438.3531221659.

The spelling of 84231069 in words is "eighty-four million, two hundred thirty-one thousand, sixty-nine".

Divisors: 1 3 13 39 2159771 6479313 28077023 84231069