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423788870 = 2583510589
BaseRepresentation
bin11001010000101…
…000000101000110
31002112102201001002
4121100220011012
51331442220440
6110015133302
713334101031
oct3120500506
91075381032
10423788870
111a824393a
12b9b14232
1369a5045b
14403d8018
1527312115
hex19428146

423788870 has 16 divisors (see below), whose sum is σ = 772012080. Its totient is φ = 167472864.

The previous prime is 423788867. The next prime is 423788881. The reversal of 423788870 is 78887324.

It is a happy number.

It is a super-3 number, since 3×4237888703 (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254465 + ... + 256124.

It is an arithmetic number, because the mean of its divisors is an integer number (48250755).

Almost surely, 2423788870 is an apocalyptic number.

423788870 is a deficient number, since it is larger than the sum of its proper divisors (348223210).

423788870 is a wasteful number, since it uses less digits than its factorization.

423788870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510679.

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 423788870 is about 20586.1329540057. The cubic root of 423788870 is about 751.1324344476.

The spelling of 423788870 in words is "four hundred twenty-three million, seven hundred eighty-eight thousand, eight hundred seventy".

Divisors: 1 2 5 10 83 166 415 830 510589 1021178 2552945 5105890 42378887 84757774 211894435 423788870