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117587380 = 2255879369
BaseRepresentation
bin1110000001000…
…11110110110100
322012021001120011
413000203312310
5220100244010
615400150004
72625322231
oct700436664
9265231504
10117587380
1160414159
1233468304
131b490a41
141188c788
15a4caa8a
hex7023db4

117587380 has 12 divisors (see below), whose sum is σ = 246933540. Its totient is φ = 47034944.

The previous prime is 117587363. The next prime is 117587381. The reversal of 117587380 is 83785711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44382244 + 73205136 = 6662^2 + 8556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117587381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2939665 + ... + 2939704.

It is an arithmetic number, because the mean of its divisors is an integer number (20577795).

Almost surely, 2117587380 is an apocalyptic number.

117587380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117587380 is an abundant number, since it is smaller than the sum of its proper divisors (129346160).

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

117587380 is a wasteful number, since it uses less digits than its factorization.

117587380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5879378 (or 5879376 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 117587380 is about 10843.7714841286. The cubic root of 117587380 is about 489.9144373717.

The spelling of 117587380 in words is "one hundred seventeen million, five hundred eighty-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 5879369 11758738 23517476 29396845 58793690 117587380