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1420022156 = 227279293313
BaseRepresentation
bin101010010100011…
…1101000110001100
310122222000121012012
41110220331012030
510402011202111
6352524000352
750121663200
oct12450750614
93588017165
101420022156
11669624733
123376900b8
1319826bcc7
14d6844b00
15849ec48b
hex54a3d18c

1420022156 has 72 divisors (see below), whose sum is σ = 2946726720. Its totient is φ = 596913408.

The previous prime is 1420022147. The next prime is 1420022159. The reversal of 1420022156 is 6512200241.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1420022159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4536656 + ... + 4536968.

It is an arithmetic number, because the mean of its divisors is an integer number (40926760).

Almost surely, 21420022156 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1420022156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473363360).

1420022156 is an abundant number, since it is smaller than the sum of its proper divisors (1526704564).

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

1420022156 is a wasteful number, since it uses less digits than its factorization.

1420022156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703 (or 694 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1420022156 is about 37683.1813412827. The cubic root of 1420022156 is about 1123.9967103917.

Adding to 1420022156 its reverse (6512200241), we get a palindrome (7932222397).

The spelling of 1420022156 in words is "one billion, four hundred twenty million, twenty-two thousand, one hundred fifty-six".

Divisors: 1 2 4 7 14 28 49 79 98 158 196 293 313 316 553 586 626 1106 1172 1252 2051 2191 2212 3871 4102 4382 7742 8204 8764 14357 15337 15484 23147 24727 28714 30674 46294 49454 57428 61348 91709 92588 98908 162029 173089 183418 324058 346178 366836 641963 648116 692356 1134203 1211623 1283926 2268406 2423246 2567852 4493741 4536812 4846492 7245011 8987482 14490022 17974964 28980044 50715077 101430154 202860308 355005539 710011078 1420022156