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2856420924420 = 22357217129144269
BaseRepresentation
bin101001100100001111111…
…101000101110000000100
3101010001220212220112000010
4221210033331011300010
5333244422224040140
610024115513350220
7413240526152100
oct51441775056004
911101825815003
102856420924420
11a01446166138
123a1715708370
13179489605c0b
149c374204900
154e47e6e5880
hex2990ff45c04

2856420924420 has 288 divisors, whose sum is σ = 9858904917120. Its totient is φ = 614000701440.

The previous prime is 2856420924373. The next prime is 2856420924433. The reversal of 2856420924420 is 244290246582.

It is a self number, because there is not a number n which added to its sum of digits gives 2856420924420.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 64502046 + ... + 64546314.

It is an arithmetic number, because the mean of its divisors is an integer number (34232308740).

Almost surely, 22856420924420 is an apocalyptic number.

2856420924420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2856420924420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4929452458560).

2856420924420 is an abundant number, since it is smaller than the sum of its proper divisors (7002483992700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2856420924420 is a wasteful number, since it uses less digits than its factorization.

2856420924420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45603 (or 45594 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 48.

The spelling of 2856420924420 in words is "two trillion, eight hundred fifty-six billion, four hundred twenty million, nine hundred twenty-four thousand, four hundred twenty".