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20292960 = 253567631
BaseRepresentation
bin100110101101…
…0010101100000
31102011222201010
41031122111200
520143333320
62002540520
7334326102
oct115322540
942158633
1020292960
1110500446
126967740
13428688c
1429a3572
151bacae0
hex135a560

20292960 has 96 divisors (see below), whose sum is σ = 64979712. Its totient is φ = 5322240.

The previous prime is 20292959. The next prime is 20292997. The reversal of 20292960 is 6929202.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 31845 + ... + 32475.

It is an arithmetic number, because the mean of its divisors is an integer number (676872).

Almost surely, 220292960 is an apocalyptic number.

20292960 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 20292960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32489856).

20292960 is an abundant number, since it is smaller than the sum of its proper divisors (44686752).

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

20292960 is a wasteful number, since it uses less digits than its factorization.

20292960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 20292960 is about 4504.7708043806. The cubic root of 20292960 is about 272.7607021649.

The spelling of 20292960 in words is "twenty million, two hundred ninety-two thousand, nine hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 67 80 96 120 134 160 201 240 268 335 402 480 536 631 670 804 1005 1072 1262 1340 1608 1893 2010 2144 2524 2680 3155 3216 3786 4020 5048 5360 6310 6432 7572 8040 9465 10096 10720 12620 15144 16080 18930 20192 25240 30288 32160 37860 42277 50480 60576 75720 84554 100960 126831 151440 169108 211385 253662 302880 338216 422770 507324 634155 676432 845540 1014648 1268310 1352864 1691080 2029296 2536620 3382160 4058592 5073240 6764320 10146480 20292960