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19620125 = 537171319
BaseRepresentation
bin100101011011…
…0000100011101
31100220210202022
41022312010131
520010321000
61540305525
7325524350
oct112660435
940823668
1019620125
1110090988
1266a22a5
1340ac555
14286a297
151ac8585
hex12b611d

19620125 has 32 divisors (see below), whose sum is σ = 29652480. Its totient is φ = 12652800.

The previous prime is 19620119. The next prime is 19620143. The reversal of 19620125 is 52102691.

It is not a de Polignac number, because 19620125 - 210 = 19619101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19620094 and 19620103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14216 + ... + 15534.

It is an arithmetic number, because the mean of its divisors is an integer number (926640).

Almost surely, 219620125 is an apocalyptic number.

It is an amenable number.

19620125 is a deficient number, since it is larger than the sum of its proper divisors (10032355).

19620125 is a wasteful number, since it uses less digits than its factorization.

19620125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1348 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 19620125 is about 4429.4610281613. The cubic root of 19620125 is about 269.7121990491.

The spelling of 19620125 in words is "nineteen million, six hundred twenty thousand, one hundred twenty-five".

Divisors: 1 5 7 17 25 35 85 119 125 175 425 595 875 1319 2125 2975 6595 9233 14875 22423 32975 46165 112115 156961 164875 230825 560575 784805 1154125 2802875 3924025 19620125