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69081012 = 22357111371
BaseRepresentation
bin1000001111000…
…01011110110100
311210222200100000
410013201132310
5120141043022
610504351300
71466115240
oct407413664
9153880300
1069081012
1135aa3650
121b175530
1311409450
149263420
1560e86ac
hex41e17b4

69081012 has 288 divisors, whose sum is σ = 246564864. Its totient is φ = 16329600.

The previous prime is 69081011. The next prime is 69081043. The reversal of 69081012 is 21018096.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69081011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 972937 + ... + 973007.

It is an arithmetic number, because the mean of its divisors is an integer number (856128).

Almost surely, 269081012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69081012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123282432).

69081012 is an abundant number, since it is smaller than the sum of its proper divisors (177483852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69081012 is a wasteful number, since it uses less digits than its factorization.

69081012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 69081012 is about 8311.4987818082. The cubic root of 69081012 is about 410.3170500251.

The spelling of 69081012 in words is "sixty-nine million, eighty-one thousand, twelve".