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20383350 = 23521310453
BaseRepresentation
bin100110111000…
…0011001110110
31102100120200220
41031300121312
520204231400
62004515210
7335153451
oct115603166
942316626
1020383350
1110562349
1269abb06
1342b8a70
1429c8498
151bc97a0
hex1370676

20383350 has 48 divisors (see below), whose sum is σ = 54444432. Its totient is φ = 5016960.

The previous prime is 20383303. The next prime is 20383351. The reversal of 20383350 is 5338302.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20383350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20383351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3277 + ... + 7176.

It is an arithmetic number, because the mean of its divisors is an integer number (1134259).

Almost surely, 220383350 is an apocalyptic number.

20383350 is an abundant number, since it is smaller than the sum of its proper divisors (34061082).

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

20383350 is a wasteful number, since it uses less digits than its factorization.

20383350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10481 (or 10476 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 20383350 is about 4514.7923540291. The cubic root of 20383350 is about 273.1650841752.

The spelling of 20383350 in words is "twenty million, three hundred eighty-three thousand, three hundred fifty".

Divisors: 1 2 3 5 6 10 13 15 25 26 30 39 50 65 75 78 130 150 195 325 390 650 975 1950 10453 20906 31359 52265 62718 104530 135889 156795 261325 271778 313590 407667 522650 679445 783975 815334 1358890 1567950 2038335 3397225 4076670 6794450 10191675 20383350