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69064380 = 223357112151
BaseRepresentation
bin1000001110111…
…01011010111100
311210221211112000
410013131122330
5120140030010
610504142300
71466015610
oct407353274
9153854460
1069064380
1135a92100
121b167990
13114019c8
14925b340
1560e37c0
hex41dd6bc

69064380 has 288 divisors, whose sum is σ = 271703040. Its totient is φ = 14256000.

The previous prime is 69064367. The next prime is 69064403. The reversal of 69064380 is 8346096.

69064380 is a `hidden beast` number, since 6 + 9 + 0 + 643 + 8 + 0 = 666.

It is a super-3 number, since 3×690643803 (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 457305 + ... + 457455.

Almost surely, 269064380 is an apocalyptic number.

69064380 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69064380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135851520).

69064380 is an abundant number, since it is smaller than the sum of its proper divisors (202638660).

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

69064380 is a wasteful number, since it uses less digits than its factorization.

69064380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 179 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 69064380 is about 8310.4981800130. The cubic root of 69064380 is about 410.2841179610.

The spelling of 69064380 in words is "sixty-nine million, sixty-four thousand, three hundred eighty".