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2917448420 = 225145872421
BaseRepresentation
bin1010110111100100…
…1011101011100100
321112022200201212012
42231321023223210
521433331322140
61201255013352
7132203621345
oct25571135344
97468621765
102917448420
1112679071a7
1269506a258
1337656c953
141d96780cc
151211d9265
hexade4bae4

2917448420 has 12 divisors (see below), whose sum is σ = 6126641724. Its totient is φ = 1166979360.

The previous prime is 2917448381. The next prime is 2917448447. The reversal of 2917448420 is 248447192.

It can be written as a sum of positive squares in 2 ways, for example, as 653211364 + 2264237056 = 25558^2 + 47584^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 72936191 + ... + 72936230.

It is an arithmetic number, because the mean of its divisors is an integer number (510553477).

Almost surely, 22917448420 is an apocalyptic number.

2917448420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2917448420 is an abundant number, since it is smaller than the sum of its proper divisors (3209193304).

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

2917448420 is a wasteful number, since it uses less digits than its factorization.

2917448420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145872430 (or 145872428 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 2917448420 is about 54013.4096313129. The cubic root of 2917448420 is about 1428.8974532375.

The spelling of 2917448420 in words is "two billion, nine hundred seventeen million, four hundred forty-eight thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 145872421 291744842 583489684 729362105 1458724210 2917448420