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69257952 = 2532240479
BaseRepresentation
bin1000010000011…
…00101011100000
311211022200001100
410020030223200
5120212223302
610512234400
71500453141
oct410145340
9154280040
1069257952
1136104585
121b23ba00
131146bb4a
1492abac8
156130d1c
hex420cae0

69257952 has 36 divisors (see below), whose sum is σ = 196953120. Its totient is φ = 23085888.

The previous prime is 69257941. The next prime is 69257953. The reversal of 69257952 is 25975296.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 69257898 and 69257907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69257953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119952 + ... + 120527.

It is an arithmetic number, because the mean of its divisors is an integer number (5470920).

Almost surely, 269257952 is an apocalyptic number.

It is an amenable number.

69257952 is an abundant number, since it is smaller than the sum of its proper divisors (127695168).

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

69257952 is a wasteful number, since it uses less digits than its factorization.

69257952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240495 (or 240484 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 69257952 is about 8322.1362642052. The cubic root of 69257952 is about 410.6670719248.

The spelling of 69257952 in words is "sixty-nine million, two hundred fifty-seven thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 240479 480958 721437 961916 1442874 1923832 2164311 2885748 3847664 4328622 5771496 7695328 8657244 11542992 17314488 23085984 34628976 69257952