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4212030440 = 235105300761
BaseRepresentation
bin1111101100001110…
…0111101111101000
3101212112200022112102
43323003213233220
532111234433230
61533542232532
7206243445062
oct37303475750
911775608472
104212030440
1118716438a2
12996725748
1352182b807
142bd588732
15199ba9045
hexfb0e7be8

4212030440 has 16 divisors (see below), whose sum is σ = 9477068580. Its totient is φ = 1684812160.

The previous prime is 4212030421. The next prime is 4212030451. The reversal of 4212030440 is 440302124.

It can be written as a sum of positive squares in 2 ways, for example, as 3758425636 + 453604804 = 61306^2 + 21298^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 52650341 + ... + 52650420.

Almost surely, 24212030440 is an apocalyptic number.

4212030440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4212030440 is an abundant number, since it is smaller than the sum of its proper divisors (5265038140).

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

4212030440 is a wasteful number, since it uses less digits than its factorization.

4212030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105300772 (or 105300768 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 4212030440 is about 64900.1574728444. The cubic root of 4212030440 is about 1614.9676740487.

Adding to 4212030440 its reverse (440302124), we get a palindrome (4652332564).

The spelling of 4212030440 in words is "four billion, two hundred twelve million, thirty thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 105300761 210601522 421203044 526503805 842406088 1053007610 2106015220 4212030440