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69444260 = 2253472213
BaseRepresentation
bin1000010001110…
…10001010100100
311211200010121122
410020322022210
5120234204020
610520233112
71502160254
oct410721244
9154603548
1069444260
1136221556
121b30b798
13115058a2
149319964
15616b125
hex423a2a4

69444260 has 12 divisors (see below), whose sum is σ = 145832988. Its totient is φ = 27777696.

The previous prime is 69444253. The next prime is 69444293. The reversal of 69444260 is 6244496.

It can be written as a sum of positive squares in 2 ways, for example, as 54405376 + 15038884 = 7376^2 + 3878^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 69444260.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1736087 + ... + 1736126.

It is an arithmetic number, because the mean of its divisors is an integer number (12152749).

Almost surely, 269444260 is an apocalyptic number.

It is an amenable number.

69444260 is an abundant number, since it is smaller than the sum of its proper divisors (76388728).

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

69444260 is a wasteful number, since it uses less digits than its factorization.

69444260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3472222 (or 3472220 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 69444260 is about 8333.3222666593. The cubic root of 69444260 is about 411.0349818181.

The spelling of 69444260 in words is "sixty-nine million, four hundred forty-four thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 3472213 6944426 13888852 17361065 34722130 69444260