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252646900 = 225211312239
BaseRepresentation
bin11110000111100…
…01010111110100
3122121101210101121
433003301113310
51004134200100
641023033324
76155314612
oct1703612764
9577353347
10252646900
1111a6813a0
127073b844
134045b40c
14257a86b2
15172a851a
hexf0f15f4

252646900 has 108 divisors (see below), whose sum is σ = 620585280. Its totient is φ = 88536000.

The previous prime is 252646861. The next prime is 252646913. The reversal of 252646900 is 9646252.

It is a super-2 number, since 2×2526469002 = 127660912159220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1056981 + ... + 1057219.

It is an arithmetic number, because the mean of its divisors is an integer number (5746160).

Almost surely, 2252646900 is an apocalyptic number.

252646900 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 252646900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310292640).

252646900 is an abundant number, since it is smaller than the sum of its proper divisors (367938380).

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

252646900 is a wasteful number, since it uses less digits than its factorization.

252646900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 288 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 252646900 is about 15894.8702416849. The cubic root of 252646900 is about 632.1759811434.

The spelling of 252646900 in words is "two hundred fifty-two million, six hundred forty-six thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 31 44 50 55 62 100 110 124 155 220 239 275 310 341 478 550 620 682 775 956 961 1100 1195 1364 1550 1705 1922 2390 2629 3100 3410 3844 4780 4805 5258 5975 6820 7409 8525 9610 10516 10571 11950 13145 14818 17050 19220 21142 23900 24025 26290 29636 34100 37045 42284 48050 52580 52855 65725 74090 81499 96100 105710 131450 148180 162998 185225 211420 229679 262900 264275 325996 370450 407495 459358 528550 740900 814990 918716 1057100 1148395 1629980 2037475 2296790 2526469 4074950 4593580 5052938 5741975 8149900 10105876 11483950 12632345 22967900 25264690 50529380 63161725 126323450 252646900