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117730284 = 22372360937
BaseRepresentation
bin1110000010001…
…10101111101100
322012112022120220
413001012233230
5220114332114
615403211340
72626455660
oct701065754
9265468526
10117730284
1160501561
1233516b50
131b510ab9
14118c88a0
15a5080a9
hex7046bec

117730284 has 48 divisors (see below), whose sum is σ = 327602688. Its totient is φ = 32174208.

The previous prime is 117730279. The next prime is 117730367. The reversal of 117730284 is 482037711.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28537 + ... + 32400.

It is an arithmetic number, because the mean of its divisors is an integer number (6825056).

Almost surely, 2117730284 is an apocalyptic number.

117730284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

117730284 is an abundant number, since it is smaller than the sum of its proper divisors (209872404).

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

117730284 is a wasteful number, since it uses less digits than its factorization.

117730284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60974 (or 60972 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 117730284 is about 10850.3587037480. The cubic root of 117730284 is about 490.1128214458.

Adding to 117730284 its reverse (482037711), we get a palindrome (599767995).

The spelling of 117730284 in words is "one hundred seventeen million, seven hundred thirty thousand, two hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 60937 121874 182811 243748 365622 426559 731244 853118 1279677 1401551 1706236 2559354 2803102 4204653 5118708 5606204 8409306 9810857 16818612 19621714 29432571 39243428 58865142 117730284