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56430080 = 29574767
BaseRepresentation
bin1101011101000…
…0111000000000
310221011221111222
43113100320000
5103421230310
65333254212
71253435120
oct327207000
9127157458
1056430080
1129942833
1216a94368
13b8ca0a5
1476ccc80
154e4a055
hex35d0e00

56430080 has 160 divisors (see below), whose sum is σ = 160275456. Its totient is φ = 18653184.

The previous prime is 56430079. The next prime is 56430083. The reversal of 56430080 is 8003465.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56430083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842207 + ... + 842273.

Almost surely, 256430080 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 56430080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80137728).

56430080 is an abundant number, since it is smaller than the sum of its proper divisors (103845376).

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

56430080 is an equidigital number, since it uses as much as digits as its factorization.

56430080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56430080 is about 7511.9957401479. The cubic root of 56430080 is about 383.5631606463.

The spelling of 56430080 in words is "fifty-six million, four hundred thirty thousand, eighty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 47 56 64 67 70 80 94 112 128 134 140 160 188 224 235 256 268 280 320 329 335 376 448 469 470 512 536 560 640 658 670 752 896 938 940 1072 1120 1280 1316 1340 1504 1645 1792 1876 1880 2144 2240 2345 2560 2632 2680 3008 3149 3290 3584 3752 3760 4288 4480 4690 5264 5360 6016 6298 6580 7504 7520 8576 8960 9380 10528 10720 12032 12596 13160 15008 15040 15745 17152 17920 18760 21056 21440 22043 24064 25192 26320 30016 30080 31490 34304 37520 42112 42880 44086 50384 52640 60032 60160 62980 75040 84224 85760 88172 100768 105280 110215 120064 120320 125960 150080 168448 171520 176344 201536 210560 220430 240128 251920 300160 352688 403072 421120 440860 503840 600320 705376 806144 842240 881720 1007680 1200640 1410752 1612288 1763440 2015360 2821504 3526880 4030720 5643008 7053760 8061440 11286016 14107520 28215040 56430080