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42056960 = 2851129103
BaseRepresentation
bin1010000001101…
…1110100000000
32221010201022012
42200123310000
541231310320
64101232052
71020323021
oct240336400
987121265
1042056960
1121816020
1212102628
138936b9a
14582ac48
153a5b4c5
hex281bd00

42056960 has 144 divisors (see below), whose sum is σ = 114791040. Its totient is φ = 14622720.

The previous prime is 42056957. The next prime is 42056977. The reversal of 42056960 is 6965024.

It is a super-3 number, since 3×420569603 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408269 + ... + 408371.

It is an arithmetic number, because the mean of its divisors is an integer number (797160).

Almost surely, 242056960 is an apocalyptic number.

42056960 is a gapful number since it is divisible by the number (40) 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 42056960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57395520).

42056960 is an abundant number, since it is smaller than the sum of its proper divisors (72734080).

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

42056960 is a wasteful number, since it uses less digits than its factorization.

42056960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 42056960 is about 6485.1337688594. The cubic root of 42056960 is about 347.7597319799.

The spelling of 42056960 in words is "forty-two million, fifty-six thousand, nine hundred sixty".

Divisors: 1 2 4 5 8 10 11 16 20 22 29 32 40 44 55 58 64 80 88 103 110 116 128 145 160 176 206 220 232 256 290 319 320 352 412 440 464 515 580 638 640 704 824 880 928 1030 1133 1160 1276 1280 1408 1595 1648 1760 1856 2060 2266 2320 2552 2816 2987 3190 3296 3520 3712 4120 4532 4640 5104 5665 5974 6380 6592 7040 7424 8240 9064 9280 10208 11330 11948 12760 13184 14080 14935 16480 18128 18560 20416 22660 23896 25520 26368 29870 32857 32960 36256 37120 40832 45320 47792 51040 59740 65714 65920 72512 81664 90640 95584 102080 119480 131428 131840 145024 164285 181280 191168 204160 238960 262856 290048 328570 362560 382336 408320 477920 525712 657140 725120 764672 955840 1051424 1314280 1450240 1911680 2102848 2628560 3823360 4205696 5257120 8411392 10514240 21028480 42056960