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2148047420 = 225107402371
BaseRepresentation
bin1000000000001000…
…1001101000111100
312112200221010002212
42000002021220330
513344400004140
6553052035552
7104142046631
oct20002115074
95480833085
102148047420
11a02575902
124bb462bb8
1328304159c
141653d6188
15c88a8765
hex80089a3c

2148047420 has 12 divisors (see below), whose sum is σ = 4510899624. Its totient is φ = 859218960.

The previous prime is 2148047389. The next prime is 2148047423. The reversal of 2148047420 is 247408412.

It is a super-2 number, since 2×21480474202 = 9228215437137312800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2148047423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53701166 + ... + 53701205.

It is an arithmetic number, because the mean of its divisors is an integer number (375908302).

Almost surely, 22148047420 is an apocalyptic number.

2148047420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2148047420 is an abundant number, since it is smaller than the sum of its proper divisors (2362852204).

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

2148047420 is a wasteful number, since it uses less digits than its factorization.

2148047420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107402380 (or 107402378 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 2148047420 is about 46347.0324832130. The cubic root of 2148047420 is about 1290.2720456635.

The spelling of 2148047420 in words is "two billion, one hundred forty-eight million, forty-seven thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 107402371 214804742 429609484 537011855 1074023710 2148047420