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20514604 = 22111953463
BaseRepresentation
bin100111001000…
…0011100101100
31102121020202011
41032100130230
520222431404
62011411004
7336241225
oct116203454
942536664
1020514604
1110641a20
126a53a64
134333726
142a2024c
151c03604
hex139072c

20514604 has 48 divisors (see below), whose sum is σ = 42094080. Its totient is φ = 8648640.

The previous prime is 20514601. The next prime is 20514617. The reversal of 20514604 is 40641502.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20514601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44077 + ... + 44539.

It is an arithmetic number, because the mean of its divisors is an integer number (876960).

Almost surely, 220514604 is an apocalyptic number.

It is an amenable number.

20514604 is an abundant number, since it is smaller than the sum of its proper divisors (21579476).

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

20514604 is a wasteful number, since it uses less digits than its factorization.

20514604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20514604 is about 4529.3050239524. The cubic root of 20514604 is about 273.7501585315.

The spelling of 20514604 in words is "twenty million, five hundred fourteen thousand, six hundred four".

Divisors: 1 2 4 11 19 22 38 44 53 76 106 209 212 418 463 583 836 926 1007 1166 1852 2014 2332 4028 5093 8797 10186 11077 17594 20372 22154 24539 35188 44308 49078 96767 98156 193534 269929 387068 466241 539858 932482 1079716 1864964 5128651 10257302 20514604