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20046208 = 277131721
BaseRepresentation
bin100110001111…
…0000110000000
31101201110020011
41030132012000
520112434313
61553354304
7332250520
oct114360600
941643204
1020046208
1110352016
126868994
1341cb480
14293b680
151b5e93d
hex131e180

20046208 has 64 divisors (see below), whose sum is σ = 49180320. Its totient is φ = 7925760.

The previous prime is 20046203. The next prime is 20046223. The reversal of 20046208 is 80264002.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20046203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10788 + ... + 12508.

Almost surely, 220046208 is an apocalyptic number.

20046208 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20046208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24590160).

20046208 is an abundant number, since it is smaller than the sum of its proper divisors (29134112).

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

20046208 is a wasteful number, since it uses less digits than its factorization.

20046208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 1743 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 20046208 is about 4477.2991858932. The cubic root of 20046208 is about 271.6506472210.

It can be divided in two parts, 200 and 46208, that multiplied together give a square (9241600 = 30402).

The spelling of 20046208 in words is "twenty million, forty-six thousand, two hundred eight".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 64 91 104 112 128 182 208 224 364 416 448 728 832 896 1456 1664 1721 2912 3442 5824 6884 11648 12047 13768 22373 24094 27536 44746 48188 55072 89492 96376 110144 156611 178984 192752 220288 313222 357968 385504 626444 715936 771008 1252888 1431872 1542016 2505776 2863744 5011552 10023104 20046208