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1089208910900 = 2252111272177839
BaseRepresentation
bin11111101100110011110…
…10010000010000110100
310212010102211201122101002
433312121322100100310
5120321144440122100
62152213051022432
7141456416661245
oct17663172202064
93763384648332
101089208910900
1138aa27042040
12157119a3aa18
137b934237b56
143aa0a258ccc
151d4ed42b2d5
hexfd99e90434

1089208910900 has 72 divisors (see below), whose sum is σ = 2578690369920. Its totient is φ = 396039744000.

The previous prime is 1089208910899. The next prime is 1089208910903. The reversal of 1089208910900 is 90198029801.

1089208910900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089208910903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13954181 + ... + 14032019.

Almost surely, 21089208910900 is an apocalyptic number.

1089208910900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1089208910900 is an abundant number, since it is smaller than the sum of its proper divisors (1489481459020).

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

1089208910900 is a wasteful number, since it uses less digits than its factorization.

1089208910900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90585 (or 90578 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 1089208910900 in words is "one trillion, eighty-nine billion, two hundred eight million, nine hundred ten thousand, nine hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 12721 25442 50884 63605 77839 127210 139931 155678 254420 279862 311356 318025 389195 559724 636050 699655 778390 856229 1272100 1399310 1556780 1712458 1945975 2798620 3424916 3498275 3891950 4281145 6996550 7783900 8562290 13993100 17124580 21405725 42811450 85622900 990189919 1980379838 3960759676 4950949595 9901899190 10892089109 19803798380 21784178218 24754747975 43568356436 49509495950 54460445545 99018991900 108920891090 217841782180 272302227725 544604455450 1089208910900