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2020902425 = 52279728901
BaseRepresentation
bin111100001110100…
…1000011000011001
312012211200110221222
41320131020120121
513114322334200
6532310541425
7101036246543
oct17035103031
95184613858
102020902425
119478239a3
12484967875
132628b5469
1415257a693
15bc640d85
hex78748619

2020902425 has 12 divisors (see below), whose sum is σ = 2506901676. Its totient is φ = 1616088000.

The previous prime is 2020902419. The next prime is 2020902427. The reversal of 2020902425 is 5242090202.

It can be written as a sum of positive squares in 6 ways, for example, as 263867536 + 1757034889 = 16244^2 + 41917^2 .

It is not a de Polignac number, because 2020902425 - 24 = 2020902409 is a prime.

It is a super-2 number, since 2×20209024252 = 8168093222741761250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2020902394 and 2020902403.

It is not an unprimeable number, because it can be changed into a prime (2020902427) 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, 55475 + ... + 84375.

It is an arithmetic number, because the mean of its divisors is an integer number (208908473).

Almost surely, 22020902425 is an apocalyptic number.

2020902425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2020902425 is a deficient number, since it is larger than the sum of its proper divisors (485999251).

2020902425 is a wasteful number, since it uses less digits than its factorization.

2020902425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31708 (or 31703 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2020902425 is about 44954.4483338412. The cubic root of 2020902425 is about 1264.2950813324.

Adding to 2020902425 its reverse (5242090202), we get a palindrome (7262992627).

The spelling of 2020902425 in words is "two billion, twenty million, nine hundred two thousand, four hundred twenty-five".

Divisors: 1 5 25 2797 13985 28901 69925 144505 722525 80836097 404180485 2020902425