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1226422880 = 2557665143
BaseRepresentation
bin100100100011001…
…1011101001100000
310011110201201220122
41021012123221200
510002431013010
6321410255412
742251264624
oct11106335140
93143651818
101226422880
1157a313731
122a2887568
13167116217
14b8c4b184
1572a09855
hex4919ba60

1226422880 has 24 divisors (see below), whose sum is σ = 2897424432. Its totient is φ = 490569088.

The previous prime is 1226422867. The next prime is 1226422919. The reversal of 1226422880 is 882246221.

It is a super-2 number, since 2×12264228802 = 3008226161174988800, 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 1226422880.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3832412 + ... + 3832731.

It is an arithmetic number, because the mean of its divisors is an integer number (120726018).

Almost surely, 21226422880 is an apocalyptic number.

1226422880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226422880 is an abundant number, since it is smaller than the sum of its proper divisors (1671001552).

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

1226422880 is an equidigital number, since it uses as much as digits as its factorization.

1226422880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7665158 (or 7665150 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 1226422880 is about 35020.3209579810. The cubic root of 1226422880 is about 1070.4015961301.

The spelling of 1226422880 in words is "one billion, two hundred twenty-six million, four hundred twenty-two thousand, eight hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 7665143 15330286 30660572 38325715 61321144 76651430 122642288 153302860 245284576 306605720 613211440 1226422880