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20264607 = 331131271
BaseRepresentation
bin100110101001…
…1011010011111
31102010112211000
41031103122133
520141431412
62002201343
7334150326
oct115233237
942115730
1020264607
1110491110
126953253
1342769bc
1429970bd
151ba44dc
hex135369f

20264607 has 48 divisors (see below), whose sum is σ = 34318080. Its totient is φ = 11718000.

The previous prime is 20264599. The next prime is 20264609. The reversal of 20264607 is 70646202.

It is not a de Polignac number, because 20264607 - 23 = 20264599 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20264609) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285382 + ... + 285452.

It is an arithmetic number, because the mean of its divisors is an integer number (714960).

Almost surely, 220264607 is an apocalyptic number.

20264607 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

20264607 is a deficient number, since it is larger than the sum of its proper divisors (14053473).

20264607 is a wasteful number, since it uses less digits than its factorization.

20264607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 116 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20264607 is about 4501.6227074245. The cubic root of 20264607 is about 272.6336106557.

The spelling of 20264607 in words is "twenty million, two hundred sixty-four thousand, six hundred seven".

Divisors: 1 3 9 11 27 31 33 71 93 99 213 279 297 341 639 781 837 961 1023 1917 2201 2343 2883 3069 6603 7029 8649 9207 10571 19809 21087 24211 25947 31713 59427 68231 72633 95139 204693 217899 285417 614079 653697 750541 1842237 2251623 6754869 20264607