Search a number
-
+
1420124212 = 221397727953
BaseRepresentation
bin101010010100101…
…0110000000110100
310122222012210012001
41110221112000310
510402022433322
6352530105044
750122566553
oct12451260064
93588183161
101420124212
11669694381
1233771b184
131982a65b0
14d686dd9a
1584a1c827
hex54a56034

1420124212 has 24 divisors (see below), whose sum is σ = 2679223176. Its totient is φ = 654747648.

The previous prime is 1420124207. The next prime is 1420124221. The reversal of 1420124212 is 2124210241.

It can be written as a sum of positive squares in 4 ways, for example, as 740166436 + 679957776 = 27206^2 + 26076^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1420124212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36828 + ... + 64780.

It is an arithmetic number, because the mean of its divisors is an integer number (111634299).

Almost surely, 21420124212 is an apocalyptic number.

It is an amenable number.

1420124212 is a deficient number, since it is larger than the sum of its proper divisors (1259098964).

1420124212 is a wasteful number, since it uses less digits than its factorization.

1420124212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28947 (or 28945 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 1420124212 is about 37684.5354489080. The cubic root of 1420124212 is about 1124.0236366994.

Adding to 1420124212 its reverse (2124210241), we get a palindrome (3544334453).

The spelling of 1420124212 in words is "one billion, four hundred twenty million, one hundred twenty-four thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 977 1954 3908 12701 25402 27953 50804 55906 111812 363389 726778 1453556 27310081 54620162 109240324 355031053 710062106 1420124212