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15230203300 = 22521323949019
BaseRepresentation
bin11100010111100101…
…00111010110100100
31110022102022111020201
432023302213112210
5222142413001200
610555140040244
71046263410034
oct161362472644
943272274221
1015230203300
116506064184
122b50693084
131589449a20
14a46a298c4
155e2137c6a
hex38bca75a4

15230203300 has 72 divisors (see below), whose sum is σ = 35741462400. Its totient is φ = 5599816320.

The previous prime is 15230203297. The next prime is 15230203337. The reversal of 15230203300 is 330203251.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 286191 + ... + 335209.

It is an arithmetic number, because the mean of its divisors is an integer number (496409200).

Almost surely, 215230203300 is an apocalyptic number.

15230203300 is a gapful number since it is divisible by the number (10) 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 15230203300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17870731200).

15230203300 is an abundant number, since it is smaller than the sum of its proper divisors (20511259100).

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

15230203300 is a wasteful number, since it uses less digits than its factorization.

15230203300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49285 (or 49278 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 19.

Adding to 15230203300 its reverse (330203251), we get a palindrome (15560406551).

The spelling of 15230203300 in words is "fifteen billion, two hundred thirty million, two hundred three thousand, three hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 130 239 260 325 478 650 956 1195 1300 2390 3107 4780 5975 6214 11950 12428 15535 23900 31070 49019 62140 77675 98038 155350 196076 245095 310700 490190 637247 980380 1225475 1274494 2450950 2548988 3186235 4901900 6372470 11715541 12744940 15931175 23431082 31862350 46862164 58577705 63724700 117155410 152302033 234310820 292888525 304604066 585777050 609208132 761510165 1171554100 1523020330 3046040660 3807550825 7615101650 15230203300