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65052420 = 22353972731
BaseRepresentation
bin1111100000100…
…1111100000100
311112102000010220
43320021330010
5113123134140
610242144340
71416636126
oct370117404
9145360126
1065052420
11337a1934
12199520b0
1310628874
1488d5216
155a9ebd0
hex3e09f04

65052420 has 48 divisors (see below), whose sum is σ = 182672448. Its totient is φ = 17297280.

The previous prime is 65052419. The next prime is 65052439. The reversal of 65052420 is 2425056.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22455 + ... + 25185.

It is an arithmetic number, because the mean of its divisors is an integer number (3805676).

Almost surely, 265052420 is an apocalyptic number.

65052420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

65052420 is an abundant number, since it is smaller than the sum of its proper divisors (117620028).

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

65052420 is a wasteful number, since it uses less digits than its factorization.

65052420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3140 (or 3138 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 65052420 is about 8065.5080435147. The cubic root of 65052420 is about 402.1806321724.

Adding to 65052420 its reverse (2425056), we get a palindrome (67477476).

The spelling of 65052420 in words is "sixty-five million, fifty-two thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 397 794 1191 1588 1985 2382 2731 3970 4764 5462 5955 7940 8193 10924 11910 13655 16386 23820 27310 32772 40965 54620 81930 163860 1084207 2168414 3252621 4336828 5421035 6505242 10842070 13010484 16263105 21684140 32526210 65052420