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252132480 = 2733514591
BaseRepresentation
bin11110000011100…
…11110010000000
3122120102122202000
433001303302000
51004021214410
641004024000
76151043055
oct1701636200
9576378660
10252132480
1111a35a956
1270532000
134030b222
14256b302c
1517205dc0
hexf073c80

252132480 has 128 divisors (see below), whose sum is σ = 893030400. Its totient is φ = 67230720.

The previous prime is 252132443. The next prime is 252132511. The reversal of 252132480 is 84231252.

252132480 is a `hidden beast` number, since 2 + 52 + 132 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 9985 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (6976800).

Almost surely, 2252132480 is an apocalyptic number.

252132480 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 252132480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (446515200).

252132480 is an abundant number, since it is smaller than the sum of its proper divisors (640897920).

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

252132480 is a wasteful number, since it uses less digits than its factorization.

252132480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14619 (or 14601 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 252132480 is about 15878.6800458980. The cubic root of 252132480 is about 631.7466270573.

The spelling of 252132480 in words is "two hundred fifty-two million, one hundred thirty-two thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 270 288 320 360 384 432 480 540 576 640 720 864 960 1080 1152 1440 1728 1920 2160 2880 3456 4320 5760 8640 14591 17280 29182 43773 58364 72955 87546 116728 131319 145910 175092 218865 233456 262638 291820 350184 393957 437730 466912 525276 583640 656595 700368 787914 875460 933824 1050552 1167280 1313190 1400736 1575828 1750920 1867648 1969785 2101104 2334560 2626380 2801472 3151656 3501840 3939570 4202208 4669120 5252760 5602944 6303312 7003680 7879140 8404416 9338240 10505520 12606624 14007360 15758280 16808832 21011040 25213248 28014720 31516560 42022080 50426496 63033120 84044160 126066240 252132480