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1302303020 = 225173830303
BaseRepresentation
bin100110110011111…
…1001000100101100
310100202111211220012
41031213321010230
510131342144040
6333120512352
744162251544
oct11547710454
93322454805
101302303020
11609130597
1230417b6b8
13179a63305
14c4d60324
15794e7865
hex4d9f912c

1302303020 has 24 divisors (see below), whose sum is σ = 2895709824. Its totient is φ = 490278656.

The previous prime is 1302303019. The next prime is 1302303043. The reversal of 1302303020 is 203032031.

It is a super-2 number, since 2×13023030202 = 3391986311802240800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1302302986 and 1302303004.

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, 1914812 + ... + 1915491.

It is an arithmetic number, because the mean of its divisors is an integer number (120654576).

Almost surely, 21302303020 is an apocalyptic number.

1302303020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302303020 is an abundant number, since it is smaller than the sum of its proper divisors (1593406804).

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

1302303020 is a wasteful number, since it uses less digits than its factorization.

1302303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830329 (or 3830327 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1302303020 is about 36087.4357637114. The cubic root of 1302303020 is about 1092.0369899406.

Adding to 1302303020 its reverse (203032031), we get a palindrome (1505335051).

The spelling of 1302303020 in words is "one billion, three hundred two million, three hundred three thousand, twenty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 3830303 7660606 15321212 19151515 38303030 65115151 76606060 130230302 260460604 325575755 651151510 1302303020