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20103023232 = 27341938949
BaseRepresentation
bin10010101110001110…
…111100101010000000
31220220000101101120000
4102232032330222000
5312132333220412
613122445320000
71311112610115
oct225616745200
956800341500
1020103023232
1185866a5996
123a90566000
131b84b39526
14d89c6290c
157c9d1b4dc
hex4ae3bca80

20103023232 has 80 divisors (see below), whose sum is σ = 59826302250. Its totient is φ = 6701004288.

The previous prime is 20103023221. The next prime is 20103023257. The reversal of 20103023232 is 23232030102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17684744256 + 2418278976 = 132984^2 + 49176^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 959107 + ... + 979842.

Almost surely, 220103023232 is an apocalyptic number.

It is an amenable number.

20103023232 is an abundant number, since it is smaller than the sum of its proper divisors (39723279018).

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

20103023232 is an equidigital number, since it uses as much as digits as its factorization.

20103023232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938975 (or 1938954 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 20103023232 its reverse (23232030102), we get a palindrome (43335053334).

The spelling of 20103023232 in words is "twenty billion, one hundred three million, twenty-three thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 288 324 384 432 576 648 864 1152 1296 1728 2592 3456 5184 10368 1938949 3877898 5816847 7755796 11633694 15511592 17450541 23267388 31023184 34901082 46534776 52351623 62046368 69802164 93069552 104703246 124092736 139604328 157054869 186139104 209406492 248185472 279208656 314109738 372278208 418812984 558417312 628219476 744556416 837625968 1116834624 1256438952 1675251936 2233669248 2512877904 3350503872 5025755808 6701007744 10051511616 20103023232