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117111040 = 28591493
BaseRepresentation
bin1101111101011…
…11100100000000
322011100212010221
412332233210000
5214440023130
615342032424
72621266414
oct676574400
9264325127
10117111040
1160119292
1233278714
131b354c97
14117a6d44
15a43487a
hex6faf900

117111040 has 36 divisors (see below), whose sum is σ = 280520604. Its totient is φ = 46843904.

The previous prime is 117111023. The next prime is 117111061. The reversal of 117111040 is 40111711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 88209664 + 28901376 = 9392^2 + 5376^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44467 + ... + 47026.

It is an arithmetic number, because the mean of its divisors is an integer number (7792239).

Almost surely, 2117111040 is an apocalyptic number.

117111040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117111040 is an abundant number, since it is smaller than the sum of its proper divisors (163409564).

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

117111040 is an frugal number, since it uses more digits than its factorization.

117111040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91514 (or 91500 counting only the distinct ones).

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 117111040 is about 10821.7854349456. The cubic root of 117111040 is about 489.2520032692.

Adding to 117111040 its reverse (40111711), we get a palindrome (157222751).

The spelling of 117111040 in words is "one hundred seventeen million, one hundred eleven thousand, forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 640 1280 91493 182986 365972 457465 731944 914930 1463888 1829860 2927776 3659720 5855552 7319440 11711104 14638880 23422208 29277760 58555520 117111040