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56620120 = 23510713229
BaseRepresentation
bin1101011111111…
…1010001011000
310221112121012111
43113333101120
5103443320440
65341322104
71255156144
oct327772130
9127477174
1056620120
1129a62597
1216b66334
13b96573b
14773c224
154e864ea
hex35ff458

56620120 has 32 divisors (see below), whose sum is σ = 128595600. Its totient is φ = 22434688.

The previous prime is 56620103. The next prime is 56620129. The reversal of 56620120 is 2102665.

It is a junction number, because it is equal to n+sod(n) for n = 56620091 and 56620100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2335 + ... + 10894.

Almost surely, 256620120 is an apocalyptic number.

It is an amenable number.

56620120 is an abundant number, since it is smaller than the sum of its proper divisors (71975480).

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

56620120 is a wasteful number, since it uses less digits than its factorization.

56620120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13347 (or 13343 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56620120 is about 7524.6342103786. The cubic root of 56620120 is about 383.9932543665.

Adding to 56620120 its reverse (2102665), we get a palindrome (58722785).

The spelling of 56620120 in words is "fifty-six million, six hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 107 214 428 535 856 1070 2140 4280 13229 26458 52916 66145 105832 132290 264580 529160 1415503 2831006 5662012 7077515 11324024 14155030 28310060 56620120