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20352925 = 522967419
BaseRepresentation
bin100110110100…
…0111110011101
31102022000222001
41031220332131
520202243200
62004122301
7334665655
oct115507635
942260861
1020352925
11105414aa
126996391
1342a7c68
1429bb365
151bc076a
hex1368f9d

20352925 has 24 divisors (see below), whose sum is σ = 26560800. Its totient is φ = 15449280.

The previous prime is 20352919. The next prime is 20352947. The reversal of 20352925 is 52925302.

It is not a de Polignac number, because 20352925 - 29 = 20352413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20352893 and 20352902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48366 + ... + 48784.

It is an arithmetic number, because the mean of its divisors is an integer number (1106700).

Almost surely, 220352925 is an apocalyptic number.

20352925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20352925 is a deficient number, since it is larger than the sum of its proper divisors (6207875).

20352925 is a wasteful number, since it uses less digits than its factorization.

20352925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 20352925 is about 4511.4216162979. The cubic root of 20352925 is about 273.0291041350.

The spelling of 20352925 in words is "twenty million, three hundred fifty-two thousand, nine hundred twenty-five".

Divisors: 1 5 25 29 67 145 335 419 725 1675 1943 2095 9715 10475 12151 28073 48575 60755 140365 303775 701825 814117 4070585 20352925