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2122624228 = 22975470681
BaseRepresentation
bin111111010000100…
…1010110011100100
312110221002111001011
41332201022303210
513321342433403
6550343112004
7103413002554
oct17641126344
95427074034
102122624228
1199a190aaa
124b2a42604
1327a9ac88a
14161c99164
15c6535a6d
hex7e84ace4

2122624228 has 12 divisors (see below), whose sum is σ = 3752887852. Its totient is φ = 1050370560.

The previous prime is 2122624223. The next prime is 2122624241. The reversal of 2122624228 is 8224262212.

It can be written as a sum of positive squares in 2 ways, for example, as 620906724 + 1501717504 = 24918^2 + 38752^2 .

It is a super-2 number, since 2×21226242282 = 9011067226585191968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2122624228.

It is not an unprimeable number, because it can be changed into a prime (2122624223) 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, 2734953 + ... + 2735728.

Almost surely, 22122624228 is an apocalyptic number.

It is an amenable number.

2122624228 is a deficient number, since it is larger than the sum of its proper divisors (1630263624).

2122624228 is a wasteful number, since it uses less digits than its factorization.

2122624228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5470782 (or 5470780 counting only the distinct ones).

The product of its digits is 12288, while the sum is 31.

The square root of 2122624228 is about 46071.9462145892. The cubic root of 2122624228 is about 1285.1614967580.

It can be divided in two parts, 21226 and 24228, that added together give a palindrome (45454).

The spelling of 2122624228 in words is "two billion, one hundred twenty-two million, six hundred twenty-four thousand, two hundred twenty-eight".

Divisors: 1 2 4 97 194 388 5470681 10941362 21882724 530656057 1061312114 2122624228