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20010103000 = 2353732691019
BaseRepresentation
bin10010101000101100…
…011111000011011000
31220122112112112221221
4102220230133003120
5311440041244000
613105325541424
71305604032466
oct225054370330
956575475857
1020010103000
1185391aa608
123a65414874
131b6b804344
14d7b795836
157c1ab461a
hex4a8b1f0d8

20010103000 has 128 divisors (see below), whose sum is σ = 47688264000. Its totient is φ = 7857331200.

The previous prime is 20010102991. The next prime is 20010103007. The reversal of 20010103000 is 30101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010103007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19636491 + ... + 19637509.

Almost surely, 220010103000 is an apocalyptic number.

20010103000 is a gapful number since it is divisible by the number (20) 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 20010103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23844132000).

20010103000 is an abundant number, since it is smaller than the sum of its proper divisors (27678161000).

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

20010103000 is a wasteful number, since it uses less digits than its factorization.

20010103000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1368 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

Adding to 20010103000 its reverse (30101002), we get a palindrome (20040204002).

The spelling of 20010103000 in words is "twenty billion, ten million, one hundred three thousand".

Divisors: 1 2 4 5 8 10 20 25 40 50 73 100 125 146 200 250 269 292 365 500 538 584 730 1000 1019 1076 1345 1460 1825 2038 2152 2690 2920 3650 4076 5095 5380 6725 7300 8152 9125 10190 10760 13450 14600 18250 19637 20380 25475 26900 33625 36500 39274 40760 50950 53800 67250 73000 74387 78548 98185 101900 127375 134500 148774 157096 196370 203800 254750 269000 274111 297548 371935 392740 490925 509500 548222 595096 743870 785480 981850 1019000 1096444 1370555 1487740 1859675 1963700 2192888 2454625 2741110 2975480 3719350 3927400 4909250 5482220 6852775 7438700 9298375 9818500 10964440 13705550 14877400 18596750 19637000 20010103 27411100 34263875 37193500 40020206 54822200 68527750 74387000 80040412 100050515 137055500 160080824 200101030 274111000 400202060 500252575 800404120 1000505150 2001010300 2501262875 4002020600 5002525750 10005051500 20010103000