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116668280 = 23517171571
BaseRepresentation
bin1101111010000…
…11011101111000
322010112100210102
412331003131320
5214331341110
615324334532
72614443521
oct675033570
9263470712
10116668280
115a946673
12330a4448
131b22b5b1
14116cd848
15a3985a5
hex6f43778

116668280 has 32 divisors (see below), whose sum is σ = 277946640. Its totient is φ = 43921920.

The previous prime is 116668249. The next prime is 116668291. The reversal of 116668280 is 82866611.

It is a super-2 number, since 2×1166682802 = 27222975116316800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85106 + ... + 86465.

Almost surely, 2116668280 is an apocalyptic number.

116668280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

116668280 is an abundant number, since it is smaller than the sum of its proper divisors (161278360).

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

116668280 is a wasteful number, since it uses less digits than its factorization.

116668280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171599 (or 171595 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 116668280 is about 10801.3091799096. The cubic root of 116668280 is about 488.6346553117.

The spelling of 116668280 in words is "one hundred sixteen million, six hundred sixty-eight thousand, two hundred eighty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 171571 343142 686284 857855 1372568 1715710 2916707 3431420 5833414 6862840 11666828 14583535 23333656 29167070 58334140 116668280