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19630136 = 231271392
BaseRepresentation
bin100101011100…
…0100000111000
31100221022111002
41022320200320
520011131021
61540424132
7325565501
oct112704070
940838432
1019630136
1110098459
1266a8048
1340b3c86
14286dba8
151acb50b
hex12b8838

19630136 has 24 divisors (see below), whose sum is σ = 37365120. Its totient is φ = 9667728.

The previous prime is 19630123. The next prime is 19630183. The reversal of 19630136 is 63103691.

It is a junction number, because it is equal to n+sod(n) for n = 19630099 and 19630108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 141155 + ... + 141293.

It is an arithmetic number, because the mean of its divisors is an integer number (1556880).

Almost surely, 219630136 is an apocalyptic number.

It is an amenable number.

19630136 is a deficient number, since it is larger than the sum of its proper divisors (17734984).

19630136 is a wasteful number, since it uses less digits than its factorization.

19630136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 19630136 is about 4430.5909312416. The cubic root of 19630136 is about 269.7580640257.

The spelling of 19630136 in words is "nineteen million, six hundred thirty thousand, one hundred thirty-six".

Divisors: 1 2 4 8 127 139 254 278 508 556 1016 1112 17653 19321 35306 38642 70612 77284 141224 154568 2453767 4907534 9815068 19630136