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253225920 = 26351913883
BaseRepresentation
bin11110001011111…
…10101111000000
3122122111012122210
433011332233000
51004311212140
641043302120
76163245663
oct1705765700
9578435583
10253225920
1111aa37422
127097a940
1340601b2c
14258b96da
151736ed80
hexf17ebc0

253225920 has 112 divisors (see below), whose sum is σ = 846368640. Its totient is φ = 63968256.

The previous prime is 253225913. The next prime is 253225927. The reversal of 253225920 is 29522352.

It is an interprime number because it is at equal distance from previous prime (253225913) and next prime (253225927).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253225927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11299 + ... + 25181.

Almost surely, 2253225920 is an apocalyptic number.

253225920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253225920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423184320).

253225920 is an abundant number, since it is smaller than the sum of its proper divisors (593142720).

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

253225920 is a wasteful number, since it uses less digits than its factorization.

253225920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13922 (or 13912 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 253225920 is about 15913.0738702490. The cubic root of 253225920 is about 632.6585561762.

The spelling of 253225920 in words is "two hundred fifty-three million, two hundred twenty-five thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 19 20 24 30 32 38 40 48 57 60 64 76 80 95 96 114 120 152 160 190 192 228 240 285 304 320 380 456 480 570 608 760 912 960 1140 1216 1520 1824 2280 3040 3648 4560 6080 9120 13883 18240 27766 41649 55532 69415 83298 111064 138830 166596 208245 222128 263777 277660 333192 416490 444256 527554 555320 666384 791331 832980 888512 1055108 1110640 1318885 1332768 1582662 1665960 2110216 2221280 2637770 2665536 3165324 3331920 3956655 4220432 4442560 5275540 6330648 6663840 7913310 8440864 10551080 12661296 13327680 15826620 16881728 21102160 25322592 31653240 42204320 50645184 63306480 84408640 126612960 253225920