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253567920 = 243517193271
BaseRepresentation
bin11110001110100…
…10001110110000
3122200010120210110
433013102032300
51004403133140
641054501320
76166202034
oct1707221660
9580116713
10253567920
11120150371
1270b04840
13406c16b8
14259681c4
15173db380
hexf1d23b0

253567920 has 160 divisors (see below), whose sum is σ = 876372480. Its totient is φ = 60272640.

The previous prime is 253567913. The next prime is 253567921. The reversal of 253567920 is 29765352.

253567920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (253567921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75885 + ... + 79155.

It is an arithmetic number, because the mean of its divisors is an integer number (5477328).

Almost surely, 2253567920 is an apocalyptic number.

253567920 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 253567920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438186240).

253567920 is an abundant number, since it is smaller than the sum of its proper divisors (622804560).

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

253567920 is a wasteful number, since it uses less digits than its factorization.

253567920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323 (or 3317 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The square root of 253567920 is about 15923.8161255398. The cubic root of 253567920 is about 632.9432451630.

The spelling of 253567920 in words is "two hundred fifty-three million, five hundred sixty-seven thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 17 19 20 24 30 34 38 40 48 51 57 60 68 76 80 85 95 102 114 120 136 152 170 190 204 228 240 255 272 285 304 323 340 380 408 456 510 570 646 680 760 816 912 969 1020 1140 1292 1360 1520 1615 1938 2040 2280 2584 3230 3271 3876 4080 4560 4845 5168 6460 6542 7752 9690 9813 12920 13084 15504 16355 19380 19626 25840 26168 32710 38760 39252 49065 52336 55607 62149 65420 77520 78504 98130 111214 124298 130840 157008 166821 186447 196260 222428 248596 261680 278035 310745 333642 372894 392520 444856 497192 556070 621490 667284 745788 785040 834105 889712 932235 994384 1056533 1112140 1242980 1334568 1491576 1668210 1864470 2113066 2224280 2485960 2669136 2983152 3169599 3336420 3728940 4226132 4448560 4971920 5282665 6339198 6672840 7457880 8452264 10565330 12678396 13345680 14915760 15847995 16904528 21130660 25356792 31695990 42261320 50713584 63391980 84522640 126783960 253567920