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272106720 = 25325233811
BaseRepresentation
bin10000001110000…
…000010011100000
3200222000110020200
4100032000103200
51024124403340
643000105200
76512604024
oct2016002340
9628013220
10272106720
1112a662896
1277165200
13444b29c2
14281d2384
1518d4e330
hex103804e0

272106720 has 144 divisors (see below), whose sum is σ = 933699312. Its totient is φ = 72161280.

The previous prime is 272106701. The next prime is 272106727. The reversal of 272106720 is 27601272.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (272106727) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335115 + ... + 335925.

It is an arithmetic number, because the mean of its divisors is an integer number (6484023).

Almost surely, 2272106720 is an apocalyptic number.

272106720 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 272106720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466849656).

272106720 is an abundant number, since it is smaller than the sum of its proper divisors (661592592).

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

272106720 is a wasteful number, since it uses less digits than its factorization.

272106720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 272106720 is about 16495.6576104137. The cubic root of 272106720 is about 648.0070872567.

Adding to 272106720 its reverse (27601272), we get a palindrome (299707992).

It can be divided in two parts, 27210 and 6720, that added together give a triangular number (33930 = T260).

The spelling of 272106720 in words is "two hundred seventy-two million, one hundred six thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 233 240 288 360 466 480 699 720 811 932 1165 1398 1440 1622 1864 2097 2330 2433 2796 3244 3495 3728 4055 4194 4660 4866 5592 6488 6990 7299 7456 8110 8388 9320 9732 10485 11184 12165 12976 13980 14598 16220 16776 18640 19464 20970 22368 24330 25952 27960 29196 32440 33552 36495 37280 38928 41940 48660 55920 58392 64880 67104 72990 77856 83880 97320 111840 116784 129760 145980 167760 188963 194640 233568 291960 335520 377926 389280 566889 583920 755852 944815 1133778 1167840 1511704 1700667 1889630 2267556 2834445 3023408 3401334 3779260 4535112 5668890 6046816 6802668 7558520 8503335 9070224 11337780 13605336 15117040 17006670 18140448 22675560 27210672 30234080 34013340 45351120 54421344 68026680 90702240 136053360 272106720