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242420408 = 23171782503
BaseRepresentation
bin11100111001100…
…00101010111000
3121220011020021122
432130300222320
5444024423113
640015524412
76002353016
oct1634605270
9556136248
10242420408
1111492704a
1269229708
133b2ba739
14242a58b6
1516438408
hexe730ab8

242420408 has 16 divisors (see below), whose sum is σ = 481276080. Its totient is φ = 114080128.

The previous prime is 242420393. The next prime is 242420419. The reversal of 242420408 is 804024242.

242420408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 891116 + ... + 891387.

It is an arithmetic number, because the mean of its divisors is an integer number (30079755).

Almost surely, 2242420408 is an apocalyptic number.

It is an amenable number.

242420408 is a deficient number, since it is larger than the sum of its proper divisors (238855672).

242420408 is a wasteful number, since it uses less digits than its factorization.

242420408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782526 (or 1782522 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 242420408 is about 15569.8557475656. The cubic root of 242420408 is about 623.5286202783.

The spelling of 242420408 in words is "two hundred forty-two million, four hundred twenty thousand, four hundred eight".

Divisors: 1 2 4 8 17 34 68 136 1782503 3565006 7130012 14260024 30302551 60605102 121210204 242420408