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54970920 = 23335232213
BaseRepresentation
bin1101000110110…
…0101000101000
310211102210221000
43101230220220
5103033032140
65242115000
71235150034
oct321545050
9124383830
1054970920
1129036514
12164aba60
13b508b94
14742d1c4
154c5ca30
hex346ca28

54970920 has 128 divisors (see below), whose sum is σ = 191289600. Its totient is φ = 14015232.

The previous prime is 54970901. The next prime is 54970931. The reversal of 54970920 is 2907945.

It is a super-3 number, since 3×549709203 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23734 + ... + 25946.

It is an arithmetic number, because the mean of its divisors is an integer number (1494450).

Almost surely, 254970920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54970920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95644800).

54970920 is an abundant number, since it is smaller than the sum of its proper divisors (136318680).

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

54970920 is a wasteful number, since it uses less digits than its factorization.

54970920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256 (or 2246 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 54970920 is about 7414.2376546750. The cubic root of 54970920 is about 380.2282101041.

The spelling of 54970920 in words is "fifty-four million, nine hundred seventy thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 23 24 27 30 36 40 45 46 54 60 69 72 90 92 108 115 120 135 138 180 184 207 216 230 270 276 345 360 414 460 540 552 621 690 828 920 1035 1080 1242 1380 1656 2070 2213 2484 2760 3105 4140 4426 4968 6210 6639 8280 8852 11065 12420 13278 17704 19917 22130 24840 26556 33195 39834 44260 50899 53112 59751 66390 79668 88520 99585 101798 119502 132780 152697 159336 199170 203596 239004 254495 265560 298755 305394 398340 407192 458091 478008 508990 597510 610788 763485 796680 916182 1017980 1195020 1221576 1374273 1526970 1832364 2035960 2290455 2390040 2748546 3053940 3664728 4580910 5497092 6107880 6871365 9161820 10994184 13742730 18323640 27485460 54970920