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253133804 = 227211137857
BaseRepresentation
bin11110001011010…
…00001111101100
3122122022112022002
433011220033230
51004300240204
641041311432
76162413300
oct1705501754
9578275262
10253133804
1111a9841a0
1270935578
134059bc21
1425893d00
151735291e
hexf1683ec

253133804 has 72 divisors (see below), whose sum is σ = 566918352. Its totient is φ = 97789440.

The previous prime is 253133801. The next prime is 253133809. The reversal of 253133804 is 408331352.

It is not an unprimeable number, because it can be changed into a prime (253133801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 294944 + ... + 295800.

It is an arithmetic number, because the mean of its divisors is an integer number (7873866).

Almost surely, 2253133804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253133804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283459176).

253133804 is an abundant number, since it is smaller than the sum of its proper divisors (313784548).

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

253133804 is a wasteful number, since it uses less digits than its factorization.

253133804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 253133804 is about 15910.1792573183. The cubic root of 253133804 is about 632.5818327986.

The spelling of 253133804 in words is "two hundred fifty-three million, one hundred thirty-three thousand, eight hundred four".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 137 154 196 274 308 539 548 857 959 1078 1507 1714 1918 2156 3014 3428 3836 5999 6028 6713 9427 10549 11998 13426 18854 21098 23996 26852 37708 41993 42196 65989 73843 83986 117409 131978 147686 167972 234818 263956 295372 461923 469636 821863 923846 1291499 1643726 1847692 2582998 3287452 5165996 5753041 9040493 11506082 18080986 23012164 36161972 63283451 126566902 253133804