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243469028 = 221137149551
BaseRepresentation
bin11101000001100…
…00101011100100
3121222010111201102
432200300223210
5444312002103
640054215232
76014311145
oct1640605344
9558114642
10243469028
11115482980
1269654518
133b596b1a
1424499acc
1516593e88
hexe830ae4

243469028 has 24 divisors (see below), whose sum is σ = 477369984. Its totient is φ = 107676000.

The previous prime is 243469027. The next prime is 243469043. The reversal of 243469028 is 820964342.

It is a happy number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 243468982 and 243469000.

It is not an unprimeable number, because it can be changed into a prime (243469027) 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, 73148 + ... + 76403.

It is an arithmetic number, because the mean of its divisors is an integer number (19890416).

Almost surely, 2243469028 is an apocalyptic number.

It is an amenable number.

243469028 is a deficient number, since it is larger than the sum of its proper divisors (233900956).

243469028 is a wasteful number, since it uses less digits than its factorization.

243469028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149603 (or 149601 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 243469028 is about 15603.4940958748. The cubic root of 243469028 is about 624.4263775861.

The spelling of 243469028 in words is "two hundred forty-three million, four hundred sixty-nine thousand, twenty-eight".

Divisors: 1 2 4 11 22 37 44 74 148 407 814 1628 149551 299102 598204 1645061 3290122 5533387 6580244 11066774 22133548 60867257 121734514 243469028