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1420288430 = 251112911713
BaseRepresentation
bin101010010100111…
…1110000110101110
310122222112010110012
41110221332012232
510402043212210
6352533413222
750124152411
oct12451760656
93588463405
101420288430
116697967a0
1233779a212
13198333272
14d68b3b78
1584a51305
hex54a7e1ae

1420288430 has 16 divisors (see below), whose sum is σ = 2788930224. Its totient is φ = 516468480.

The previous prime is 1420288393. The next prime is 1420288439. The reversal of 1420288430 is 348820241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420288439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6455747 + ... + 6455966.

It is an arithmetic number, because the mean of its divisors is an integer number (174308139).

Almost surely, 21420288430 is an apocalyptic number.

1420288430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1420288430 is a deficient number, since it is larger than the sum of its proper divisors (1368641794).

1420288430 is a wasteful number, since it uses less digits than its factorization.

1420288430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12911731.

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 1420288430 is about 37686.7142372481. The cubic root of 1420288430 is about 1124.0669610315.

The spelling of 1420288430 in words is "one billion, four hundred twenty million, two hundred eighty-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 12911713 25823426 64558565 129117130 142028843 284057686 710144215 1420288430