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3020154320 = 24537751929
BaseRepresentation
bin1011010000000011…
…1110010111010000
321210110221201212102
42310000332113100
522141124414240
61215404215532
7134561613431
oct26400762720
97713851772
103020154320
11130a886707
1270353a5a8
1339191cc81
14209171488
1512a225815
hexb403e5d0

3020154320 has 20 divisors (see below), whose sum is σ = 7021858980. Its totient is φ = 1208061696.

The previous prime is 3020154317. The next prime is 3020154343. The reversal of 3020154320 is 234510203.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1723578256 + 1296576064 = 41516^2 + 36008^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×30201543202 = 18242664233229324800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 3020154292 and 3020154301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18875885 + ... + 18876044.

It is an arithmetic number, because the mean of its divisors is an integer number (351092949).

Almost surely, 23020154320 is an apocalyptic number.

It is an amenable number.

3020154320 is an abundant number, since it is smaller than the sum of its proper divisors (4001704660).

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

3020154320 is a wasteful number, since it uses less digits than its factorization.

3020154320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37751942 (or 37751936 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 3020154320 is about 54955.9307081592. The cubic root of 3020154320 is about 1445.4720934446.

Adding to 3020154320 its reverse (234510203), we get a palindrome (3254664523).

The spelling of 3020154320 in words is "three billion, twenty million, one hundred fifty-four thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 37751929 75503858 151007716 188759645 302015432 377519290 604030864 755038580 1510077160 3020154320