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272153840 = 2457269427
BaseRepresentation
bin10000001110001…
…011110011110000
3200222002211212212
4100032023303300
51024132410330
643001111252
76513161300
oct2016136360
9628084785
10272153840
1112a695232
1277188528
13444cb29a
1428205600
1518d5d295
hex1038bcf0

272153840 has 60 divisors (see below), whose sum is σ = 736075656. Its totient is φ = 93308544.

The previous prime is 272153831. The next prime is 272153851. The reversal of 272153840 is 48351272.

It is a junction number, because it is equal to n+sod(n) for n = 272153797 and 272153806.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30794 + ... + 38633.

Almost surely, 2272153840 is an apocalyptic number.

272153840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

272153840 is an abundant number, since it is smaller than the sum of its proper divisors (463921816).

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

272153840 is a wasteful number, since it uses less digits than its factorization.

272153840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69454 (or 69441 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 272153840 is about 16497.0858032563. The cubic root of 272153840 is about 648.0444896549.

The spelling of 272153840 in words is "two hundred seventy-two million, one hundred fifty-three thousand, eight hundred forty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 35 40 49 56 70 80 98 112 140 196 245 280 392 490 560 784 980 1960 3920 69427 138854 277708 347135 485989 555416 694270 971978 1110832 1388540 1943956 2429945 2777080 3401923 3887912 4859890 5554160 6803846 7775824 9719780 13607692 17009615 19439560 27215384 34019230 38879120 54430768 68038460 136076920 272153840