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117211390 = 2511721139
BaseRepresentation
bin1101111110010…
…00000011111110
322011112221210121
412333020003332
5220001231030
615344125154
72622165112
oct677100376
9264487717
10117211390
116018771a
12333067ba
131b38b86a
14117d1742
15a45447a
hex6fc80fe

117211390 has 8 divisors (see below), whose sum is σ = 210980520. Its totient is φ = 46884552.

The previous prime is 117211387. The next prime is 117211429. The reversal of 117211390 is 93112711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 5860560 + ... + 5860579.

It is an arithmetic number, because the mean of its divisors is an integer number (26372565).

Almost surely, 2117211390 is an apocalyptic number.

117211390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117211390 is a deficient number, since it is larger than the sum of its proper divisors (93769130).

117211390 is a wasteful number, since it uses less digits than its factorization.

117211390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721146.

The product of its (nonzero) digits is 378, while the sum is 25.

The square root of 117211390 is about 10826.4209229089. The cubic root of 117211390 is about 489.3917066424.

The spelling of 117211390 in words is "one hundred seventeen million, two hundred eleven thousand, three hundred ninety".

Divisors: 1 2 5 10 11721139 23442278 58605695 117211390