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117222012 = 22331085389
BaseRepresentation
bin1101111110010…
…10101001111100
322011120111101000
412333022221330
5220002101022
615344250300
72622241065
oct677125174
9264514330
10117222012
11601946a6
1233310990
131b39364b
14117d556c
15a4576ac
hex6fcaa7c

117222012 has 24 divisors (see below), whose sum is σ = 303909200. Its totient is φ = 39073968.

The previous prime is 117221983. The next prime is 117222023. The reversal of 117222012 is 210222711.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542587 + ... + 542802.

Almost surely, 2117222012 is an apocalyptic number.

117222012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117222012 is an abundant number, since it is smaller than the sum of its proper divisors (186687188).

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

117222012 is a wasteful number, since it uses less digits than its factorization.

117222012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085402 (or 1085394 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 117222012 is about 10826.9114709598. The cubic root of 117222012 is about 489.4064895108.

Adding to 117222012 its reverse (210222711), we get a palindrome (327444723).

The spelling of 117222012 in words is "one hundred seventeen million, two hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1085389 2170778 3256167 4341556 6512334 9768501 13024668 19537002 29305503 39074004 58611006 117222012