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1081008700 = 225210810087
BaseRepresentation
bin100000001101110…
…1110001000111100
32210100002221011021
41000123232020330
54203214234300
6255133433524
735534264602
oct10033561074
92710087137
101081008700
11505223922
1226203b8a4
13142c61725
14a37d7872
1564d83d1a
hex406ee23c

1081008700 has 18 divisors (see below), whose sum is σ = 2345789096. Its totient is φ = 432403440.

The previous prime is 1081008653. The next prime is 1081008703. The reversal of 1081008700 is 78001801.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081008703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5404944 + ... + 5405143.

Almost surely, 21081008700 is an apocalyptic number.

1081008700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081008700 is an abundant number, since it is smaller than the sum of its proper divisors (1264780396).

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

1081008700 is a wasteful number, since it uses less digits than its factorization.

1081008700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10810101 (or 10810094 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 25.

The square root of 1081008700 is about 32878.6967503276. The cubic root of 1081008700 is about 1026.3048857879.

The spelling of 1081008700 in words is "one billion, eighty-one million, eight thousand, seven hundred".

Divisors: 1 2 4 5 10 20 25 50 100 10810087 21620174 43240348 54050435 108100870 216201740 270252175 540504350 1081008700