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162430020 = 22325902389
BaseRepresentation
bin10011010111001…
…11110001000100
3102022122022002200
421223213301010
5313040230040
624041234500
74011426624
oct1153476104
9368568080
10162430020
1183762095
1246492a30
132786184c
1417802884
15e3d7630
hex9ae7c44

162430020 has 36 divisors (see below), whose sum is σ = 492704940. Its totient is φ = 43314624.

The previous prime is 162429973. The next prime is 162430027. The reversal of 162430020 is 20034261.

It is a happy number.

162430020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30272004 + 132158016 = 5502^2 + 11496^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1624300202 = 52767022794400800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 162429975 and 162430002.

It is not an unprimeable number, because it can be changed into a prime (162430027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451015 + ... + 451374.

Almost surely, 2162430020 is an apocalyptic number.

162430020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

162430020 is an abundant number, since it is smaller than the sum of its proper divisors (330274920).

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

162430020 is a wasteful number, since it uses less digits than its factorization.

162430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902404 (or 902399 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 162430020 is about 12744.8036469771. The cubic root of 162430020 is about 545.6180962585.

Adding to 162430020 its reverse (20034261), we get a palindrome (182464281).

The spelling of 162430020 in words is "one hundred sixty-two million, four hundred thirty thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 902389 1804778 2707167 3609556 4511945 5414334 8121501 9023890 10828668 13535835 16243002 18047780 27071670 32486004 40607505 54143340 81215010 162430020