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20101350320 = 2451256919991
BaseRepresentation
bin10010101110001000…
…100100001110110000
31220212220020101202022
4102232020210032300
5312131421202240
613122345411012
71311062441612
oct225610441660
956786211668
1020101350320
118585763017
123a8ba99a68
131b846a1c3c
14d89948db2
157c9ada9b5
hex4ae2243b0

20101350320 has 40 divisors (see below), whose sum is σ = 46741695840. Its totient is φ = 8039498240.

The previous prime is 20101350281. The next prime is 20101350331. The reversal of 20101350320 is 2305310102.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 995525 + ... + 1015515.

It is an arithmetic number, because the mean of its divisors is an integer number (1168542396).

Almost surely, 220101350320 is an apocalyptic number.

20101350320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20101350320 is an abundant number, since it is smaller than the sum of its proper divisors (26640345520).

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

20101350320 is a wasteful number, since it uses less digits than its factorization.

20101350320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32573 (or 32567 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

Adding to 20101350320 its reverse (2305310102), we get a palindrome (22406660422).

The spelling of 20101350320 in words is "twenty billion, one hundred one million, three hundred fifty thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 80 12569 19991 25138 39982 50276 62845 79964 99955 100552 125690 159928 199910 201104 251380 319856 399820 502760 799640 1005520 1599280 251266879 502533758 1005067516 1256334395 2010135032 2512668790 4020270064 5025337580 10050675160 20101350320