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255052920 = 23356731723
BaseRepresentation
bin11110011001111…
…00110001111000
3122202221000211110
433030330301320
51010243143140
641150400320
76214625343
oct1714746170
9582830743
10255052920
11120a75041
12715000a0
1340ac15b5
1425c3345a
15175d1380
hexf33cc78

255052920 has 64 divisors (see below), whose sum is σ = 776603520. Its totient is φ = 66996864.

The previous prime is 255052891. The next prime is 255052933. The reversal of 255052920 is 29250552.

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

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7822 + ... + 23901.

It is an arithmetic number, because the mean of its divisors is an integer number (12134430).

Almost surely, 2255052920 is an apocalyptic number.

255052920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

255052920 is an abundant number, since it is smaller than the sum of its proper divisors (521550600).

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

255052920 is a wasteful number, since it uses less digits than its factorization.

255052920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31804 (or 31800 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 255052920 is about 15970.3763261859. The cubic root of 255052920 is about 634.1764345574.

The spelling of 255052920 in words is "two hundred fifty-five million, fifty-two thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 67 120 134 201 268 335 402 536 670 804 1005 1340 1608 2010 2680 4020 8040 31723 63446 95169 126892 158615 190338 253784 317230 380676 475845 634460 761352 951690 1268920 1903380 2125441 3806760 4250882 6376323 8501764 10627205 12752646 17003528 21254410 25505292 31881615 42508820 51010584 63763230 85017640 127526460 255052920