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2420439993 = 322231205999
BaseRepresentation
bin1001000001000100…
…1111101110111001
320020200111002110200
42100101033232321
514424113034433
61040102232413
7113660254236
oct22021175671
96220432420
102420439993
111032303434
12576725709
132c75c441a
1418d66078d
15e2762613
hex9044fbb9

2420439993 has 12 divisors (see below), whose sum is σ = 3511872000. Its totient is φ = 1606389336.

The previous prime is 2420439953. The next prime is 2420439997. The reversal of 2420439993 is 3999340242.

It is a happy number.

2420439993 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2420439993 - 214 = 2420423609 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2420439997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 600993 + ... + 605006.

It is an arithmetic number, because the mean of its divisors is an integer number (292656000).

Almost surely, 22420439993 is an apocalyptic number.

It is an amenable number.

2420439993 is a deficient number, since it is larger than the sum of its proper divisors (1091432007).

2420439993 is a wasteful number, since it uses less digits than its factorization.

2420439993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206228 (or 1206225 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 2420439993 is about 49197.9673665488. The cubic root of 2420439993 is about 1342.6560508550.

The spelling of 2420439993 in words is "two billion, four hundred twenty million, four hundred thirty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 9 223 669 2007 1205999 3617997 10853991 268937777 806813331 2420439993