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1228842232 = 23312159839
BaseRepresentation
bin100100100111110…
…1010010011111000
310011122021122122021
41021033222103320
510004040422412
6321534204224
742310662262
oct11117522370
93148248567
101228842232
115807163a2
122a3653674
131677824a7
14b92bab32
1572d36607
hex493ea4f8

1228842232 has 24 divisors (see below), whose sum is σ = 2380816800. Its totient is φ = 594597360.

The previous prime is 1228842217. The next prime is 1228842247. The reversal of 1228842232 is 2322488221.

It is an interprime number because it is at equal distance from previous prime (1228842217) and next prime (1228842247).

It is a super-2 number, since 2×12288422322 = 3020106462293483648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72232 + ... + 87607.

It is an arithmetic number, because the mean of its divisors is an integer number (99200700).

Almost surely, 21228842232 is an apocalyptic number.

It is an amenable number.

1228842232 is a deficient number, since it is larger than the sum of its proper divisors (1151974568).

1228842232 is a wasteful number, since it uses less digits than its factorization.

1228842232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159907 (or 159872 counting only the distinct ones).

The product of its digits is 24576, while the sum is 34.

The square root of 1228842232 is about 35054.8460558594. The cubic root of 1228842232 is about 1071.1049906039.

The spelling of 1228842232 in words is "one billion, two hundred twenty-eight million, eight hundred forty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 31 62 124 248 961 1922 3844 7688 159839 319678 639356 1278712 4955009 9910018 19820036 39640072 153605279 307210558 614421116 1228842232