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118668550 = 252711132371
BaseRepresentation
bin1110001001010…
…11110100000110
322021021222122111
413010223310012
5220334343200
615435251234
72640444310
oct704536406
9267258574
10118668550
1160a92490
12338a9b1a
131b77bba0
1411a907b0
15a6410ba
hex712bd06

118668550 has 96 divisors (see below), whose sum is σ = 296481024. Its totient is φ = 34128000.

The previous prime is 118668497. The next prime is 118668601. The reversal of 118668550 is 55866811.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 48865 + ... + 51235.

It is an arithmetic number, because the mean of its divisors is an integer number (3088344).

Almost surely, 2118668550 is an apocalyptic number.

118668550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118668550 is an abundant number, since it is smaller than the sum of its proper divisors (177812474).

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

118668550 is a wasteful number, since it uses less digits than its factorization.

118668550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 118668550 is about 10893.5095354986. The cubic root of 118668550 is about 491.4113826835.

The spelling of 118668550 in words is "one hundred eighteen million, six hundred sixty-eight thousand, five hundred fifty".

Divisors: 1 2 5 7 10 11 13 14 22 25 26 35 50 55 65 70 77 91 110 130 143 154 175 182 275 286 325 350 385 455 550 650 715 770 910 1001 1430 1925 2002 2275 2371 3575 3850 4550 4742 5005 7150 10010 11855 16597 23710 25025 26081 30823 33194 50050 52162 59275 61646 82985 118550 130405 154115 165970 182567 215761 260810 308230 339053 365134 414925 431522 652025 678106 770575 829850 912835 1078805 1304050 1541150 1695265 1825670 2157610 2373371 3390530 4564175 4746742 5394025 8476325 9128350 10788050 11866855 16952650 23733710 59334275 118668550