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69414740 = 22517204161
BaseRepresentation
bin1000010001100…
…10111101010100
311211121122010022
410020302331110
5120232232430
610515444312
71502005223
oct410627524
9154548108
1069414740
113620135a
121b2b6698
13114c5315
14930ccba
1561624e5
hex4232f54

69414740 has 24 divisors (see below), whose sum is σ = 154346472. Its totient is φ = 26132480.

The previous prime is 69414731. The next prime is 69414743. The reversal of 69414740 is 4741496.

It can be written as a sum of positive squares in 4 ways, for example, as 425104 + 68989636 = 652^2 + 8306^2 .

It is a super-2 number, since 2×694147402 = 9636812258535200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 69414740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69414743) 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, 101741 + ... + 102420.

It is an arithmetic number, because the mean of its divisors is an integer number (6431103).

Almost surely, 269414740 is an apocalyptic number.

It is an amenable number.

69414740 is an abundant number, since it is smaller than the sum of its proper divisors (84931732).

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

69414740 is a wasteful number, since it uses less digits than its factorization.

69414740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204187 (or 204185 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 69414740 is about 8331.5508760374. The cubic root of 69414740 is about 410.9767313960.

The spelling of 69414740 in words is "sixty-nine million, four hundred fourteen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 204161 408322 816644 1020805 2041610 3470737 4083220 6941474 13882948 17353685 34707370 69414740