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421122044 = 22715040073
BaseRepresentation
bin11001000110011…
…100111111111100
31002100102012211202
4121012130333330
51330301401134
6105442035032
713302323030
oct3106347774
91070365752
10421122044
111a6792252
12b9048a78
1369328655
143dd021c0
1526e86d7e
hex1919cffc

421122044 has 12 divisors (see below), whose sum is σ = 842244144. Its totient is φ = 180480864.

The previous prime is 421122043. The next prime is 421122067. The reversal of 421122044 is 440221124.

421122044 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421122041) 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, 7520009 + ... + 7520064.

It is an arithmetic number, because the mean of its divisors is an integer number (70187012).

Almost surely, 2421122044 is an apocalyptic number.

It is an amenable number.

421122044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421122044 is a wasteful number, since it uses less digits than its factorization.

421122044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15040084 (or 15040082 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 421122044 is about 20521.2583434837. The cubic root of 421122044 is about 749.5535381337.

Adding to 421122044 its reverse (440221124), we get a palindrome (861343168).

The spelling of 421122044 in words is "four hundred twenty-one million, one hundred twenty-two thousand, forty-four".

Divisors: 1 2 4 7 14 28 15040073 30080146 60160292 105280511 210561022 421122044