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272868552 = 233211231321
BaseRepresentation
bin10000010000111…
…010010011001000
3201000110011021200
4100100322103020
51024323243202
643024304200
76522226065
oct2020722310
9630404250
10272868552
11130033200
1277472060
13446bb6a8
142834dc6c
1518e4ee1c
hex1043a4c8

272868552 has 72 divisors (see below), whose sum is σ = 812336070. Its totient is φ = 82684800.

The previous prime is 272868551. The next prime is 272868613. The reversal of 272868552 is 255868272.

It can be written as a sum of positive squares in only one way, i.e., 228432996 + 44435556 = 15114^2 + 6666^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 272868498 and 272868507.

It is not an unprimeable number, because it can be changed into a prime (272868551) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6949 + ... + 24372.

Almost surely, 2272868552 is an apocalyptic number.

272868552 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

272868552 is an abundant number, since it is smaller than the sum of its proper divisors (539467518).

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

272868552 is a wasteful number, since it uses less digits than its factorization.

272868552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31355 (or 31337 counting only the distinct ones).

The product of its digits is 537600, while the sum is 45.

The square root of 272868552 is about 16518.7333654854. The cubic root of 272868552 is about 648.6112773210.

The spelling of 272868552 in words is "two hundred seventy-two million, eight hundred sixty-eight thousand, five hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 121 132 198 242 264 363 396 484 726 792 968 1089 1452 2178 2904 4356 8712 31321 62642 93963 125284 187926 250568 281889 344531 375852 563778 689062 751704 1033593 1127556 1378124 2067186 2255112 2756248 3100779 3789841 4134372 6201558 7579682 8268744 11369523 12403116 15159364 22739046 24806232 30318728 34108569 45478092 68217138 90956184 136434276 272868552