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1086938740 = 225319371871
BaseRepresentation
bin100000011001001…
…0101111001110100
32210202021012122101
41000302111321310
54211224014430
6255504511444
735635553416
oct10062257164
92722235571
101086938740
11508604188
1226401b584
13144259924
14a44dc9b6
1565655dca
hex40c95e74

1086938740 has 48 divisors (see below), whose sum is σ = 2359977984. Its totient is φ = 420076800.

The previous prime is 1086938737. The next prime is 1086938747. The reversal of 1086938740 is 478396801.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086938747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580005 + ... + 581875.

It is an arithmetic number, because the mean of its divisors is an integer number (49166208).

Almost surely, 21086938740 is an apocalyptic number.

1086938740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1086938740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179988992).

1086938740 is an abundant number, since it is smaller than the sum of its proper divisors (1273039244).

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

1086938740 is a wasteful number, since it uses less digits than its factorization.

1086938740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848 (or 2846 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1086938740 is about 32968.7539952604. The cubic root of 1086938740 is about 1028.1781159170.

The spelling of 1086938740 in words is "one billion, eighty-six million, nine hundred thirty-eight thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 937 1871 1874 3742 3748 4685 7484 9355 9370 18710 18740 29047 37420 58001 58094 116002 116188 145235 232004 290005 290470 580010 580940 1160020 1753127 3506254 7012508 8765635 17531270 35062540 54346937 108693874 217387748 271734685 543469370 1086938740