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203210211320 = 23519425362869
BaseRepresentation
bin1011110101000001000…
…1011011111111111000
3201102112001212022112222
42331100101123333320
511312133303230240
6233204204023212
720452511203454
oct2752021337770
9642461768488
10203210211320
11791a9959506
1233472831b08
13162164247bc
149b9a5a7664
1554451dceb5
hex2f5045bff8

203210211320 has 64 divisors (see below), whose sum is σ = 481408164000. Its totient is φ = 76986643968.

The previous prime is 203210211311. The next prime is 203210211341. The reversal of 203210211320 is 23112012302.

It is a super-2 number, since 2×2032102113202 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3200846 + ... + 3263714.

Almost surely, 2203210211320 is an apocalyptic number.

203210211320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203210211320 is an abundant number, since it is smaller than the sum of its proper divisors (278197952680).

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

203210211320 is a wasteful number, since it uses less digits than its factorization.

203210211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67152 (or 67148 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 203210211320 its reverse (23112012302), we get a palindrome (226322223622).

The spelling of 203210211320 in words is "two hundred three billion, two hundred ten million, two hundred eleven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 4253 8506 17012 21265 34024 42530 62869 80807 85060 125738 161614 170120 251476 314345 323228 404035 502952 628690 646456 808070 1194511 1257380 1616140 2389022 2514760 3232280 4778044 5972555 9556088 11945110 23890220 47780440 267381857 534763714 1069527428 1336909285 2139054856 2673818570 5080255283 5347637140 10160510566 10695274280 20321021132 25401276415 40642042264 50802552830 101605105660 203210211320