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11208901020 = 2235785323789
BaseRepresentation
bin10100111000001101…
…00100000110011100
31001221011112011120020
422130012210012130
5140423434313040
65052125352140
7544524041502
oct123406440634
931834464506
1011208901020
114832150269
122209a08650
1310982aa215
1478492c672
154590a5cd0
hex29c1a419c

11208901020 has 48 divisors (see below), whose sum is σ = 31390238880. Its totient is φ = 2988534016.

The previous prime is 11208901019. The next prime is 11208901037. The reversal of 11208901020 is 2010980211.

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, 459286 + ... + 483074.

It is an arithmetic number, because the mean of its divisors is an integer number (653963310).

Almost surely, 211208901020 is an apocalyptic number.

11208901020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11208901020 is an abundant number, since it is smaller than the sum of its proper divisors (20181337860).

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

11208901020 is a wasteful number, since it uses less digits than its factorization.

11208901020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31654 (or 31652 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 11208901020 in words is "eleven billion, two hundred eight million, nine hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 7853 15706 23559 23789 31412 39265 47118 47578 71367 78530 94236 95156 117795 118945 142734 157060 235590 237890 285468 356835 471180 475780 713670 1427340 186815017 373630034 560445051 747260068 934075085 1120890102 1868150170 2241780204 2802225255 3736300340 5604450510 11208901020