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252612020 = 225107118043
BaseRepresentation
bin11110000111010…
…00110110110100
3122121100000112202
433003220312310
51004132041040
641022204032
76155111123
oct1703506664
9577300482
10252612020
1111a658171
1270723618
134044858b
1425799aba
151729d015
hexf0e8db4

252612020 has 24 divisors (see below), whose sum is σ = 535447584. Its totient is φ = 100099616.

The previous prime is 252612007. The next prime is 252612023. The reversal of 252612020 is 20216252.

252612020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 = 252611983 and 252612001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252612023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56882 + ... + 61161.

It is an arithmetic number, because the mean of its divisors is an integer number (22310316).

Almost surely, 2252612020 is an apocalyptic number.

252612020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252612020 is an abundant number, since it is smaller than the sum of its proper divisors (282835564).

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

252612020 is a wasteful number, since it uses less digits than its factorization.

252612020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118159 (or 118157 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 252612020 is about 15893.7729944781. The cubic root of 252612020 is about 632.1468874253.

Adding to 252612020 its reverse (20216252), we get a palindrome (272828272).

The spelling of 252612020 in words is "two hundred fifty-two million, six hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 107 214 428 535 1070 2140 118043 236086 472172 590215 1180430 2360860 12630601 25261202 50522404 63153005 126306010 252612020