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510168940 = 22525508447
BaseRepresentation
bin11110011010001…
…000111101101100
31022112222021012221
4132122020331230
52021100401230
6122342405124
715433236001
oct3632107554
91275867187
10510168940
11241a82526
12122a307a4
1381905818
144ba818a8
152ebc627a
hex1e688f6c

510168940 has 12 divisors (see below), whose sum is σ = 1071354816. Its totient is φ = 204067568.

The previous prime is 510168907. The next prime is 510168947. The reversal of 510168940 is 49861015.

It is a super-3 number, since 3×5101689403 (a number of 27 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 510168896 and 510168905.

It is not an unprimeable number, because it can be changed into a prime (510168947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12754204 + ... + 12754243.

It is an arithmetic number, because the mean of its divisors is an integer number (89279568).

Almost surely, 2510168940 is an apocalyptic number.

It is an amenable number.

510168940 is an abundant number, since it is smaller than the sum of its proper divisors (561185876).

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

510168940 is a wasteful number, since it uses less digits than its factorization.

510168940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25508456 (or 25508454 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 510168940 is about 22586.9196660368. The cubic root of 510168940 is about 799.0451837775.

The spelling of 510168940 in words is "five hundred ten million, one hundred sixty-eight thousand, nine hundred forty".

Divisors: 1 2 4 5 10 20 25508447 51016894 102033788 127542235 255084470 510168940