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200106455720 = 23543111607103
BaseRepresentation
bin1011101001011101000…
…1100011001010101000
3201010111202121012021212
42322113101203022220
511234304223040340
6231532211452252
720312552544353
oct2722721431250
9633452535255
10200106455720
1177956971a36
12329472b7088
1315b403b3222
1499842b329a
1553129a1a65
hex2e974632a8

200106455720 has 32 divisors (see below), whose sum is σ = 451284203520. Its totient is φ = 79856861760.

The previous prime is 200106455713. The next prime is 200106455723. The reversal of 200106455720 is 27554601002.

It is not an unprimeable number, because it can be changed into a prime (200106455723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5786312 + ... + 5820791.

It is an arithmetic number, because the mean of its divisors is an integer number (14102631360).

Almost surely, 2200106455720 is an apocalyptic number.

200106455720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200106455720 is an abundant number, since it is smaller than the sum of its proper divisors (251177747800).

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

200106455720 is a wasteful number, since it uses less digits than its factorization.

200106455720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11607545 (or 11607541 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 200106455720 in words is "two hundred billion, one hundred six million, four hundred fifty-five thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 431 862 1724 2155 3448 4310 8620 17240 11607103 23214206 46428412 58035515 92856824 116071030 232142060 464284120 5002661393 10005322786 20010645572 25013306965 40021291144 50026613930 100053227860 200106455720