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253056668 = 22192296043
BaseRepresentation
bin11110001010101…
…01011010011100
3122122011121111012
433011111122130
51004240303133
641035514352
76161642354
oct1705253234
9578147435
10253056668
1111a931247
12708b89b8
1340572a97
1425873b64
1517339b48
hexf15569c

253056668 has 36 divisors (see below), whose sum is σ = 483580440. Its totient is φ = 115716384.

The previous prime is 253056667. The next prime is 253056701. The reversal of 253056668 is 866650352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253056667) 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, 38855 + ... + 44897.

It is an arithmetic number, because the mean of its divisors is an integer number (13432790).

Almost surely, 2253056668 is an apocalyptic number.

It is an amenable number.

253056668 is a deficient number, since it is larger than the sum of its proper divisors (230523772).

253056668 is a wasteful number, since it uses less digits than its factorization.

253056668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6114 (or 6093 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 253056668 is about 15907.7549641676. The cubic root of 253056668 is about 632.5175719365.

The spelling of 253056668 in words is "two hundred fifty-three million, fifty-six thousand, six hundred sixty-eight".

Divisors: 1 2 4 19 29 38 58 76 116 361 551 722 1102 1444 2204 6043 10469 12086 20938 24172 41876 114817 175247 229634 350494 459268 700988 2181523 3329693 4363046 6659386 8726092 13318772 63264167 126528334 253056668