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20533303032 = 23311372102099
BaseRepresentation
bin10011000111111000…
…010101011011111000
31222000000000212110220
4103013320111123320
5314023011144112
613233255540040
71324556124144
oct230770253370
958000025426
1020533303032
118787572530
123b9068a620
131c23020268
14dcb06a224
158029b198c
hex4c7e156f8

20533303032 has 64 divisors (see below), whose sum is σ = 57513456000. Its totient is φ = 6054042240.

The previous prime is 20533303031. The next prime is 20533303129. The reversal of 20533303032 is 23030333502.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 20533302993 and 20533303011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20533303031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041282 + ... + 1060817.

It is an arithmetic number, because the mean of its divisors is an integer number (898647750).

Almost surely, 220533303032 is an apocalyptic number.

20533303032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20533303032 is an abundant number, since it is smaller than the sum of its proper divisors (36980152968).

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

20533303032 is a wasteful number, since it uses less digits than its factorization.

20533303032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102156 (or 2102152 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 24.

Adding to 20533303032 its reverse (23030333502), we get a palindrome (43563636534).

The spelling of 20533303032 in words is "twenty billion, five hundred thirty-three million, three hundred three thousand, thirty-two".

Divisors: 1 2 3 4 6 8 11 12 22 24 33 37 44 66 74 88 111 132 148 222 264 296 407 444 814 888 1221 1628 2442 3256 4884 9768 2102099 4204198 6306297 8408396 12612594 16816792 23123089 25225188 46246178 50450376 69369267 77777663 92492356 138738534 155555326 184984712 233332989 277477068 311110652 466665978 554954136 622221304 855554293 933331956 1711108586 1866663912 2566662879 3422217172 5133325758 6844434344 10266651516 20533303032