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7660740055 = 51980639369
BaseRepresentation
bin1110010001001110…
…11001110111010111
3201202220000220202011
413020213121313113
5111142122140210
63304100125051
7360561134053
oct71047316727
921686026664
107660740055
113281319431
121599696787
1395117a5a7
145295d4c63
152ec833d8a
hex1c89d9dd7

7660740055 has 8 divisors (see below), whose sum is σ = 9676724400. Its totient is φ = 5806034496.

The previous prime is 7660740049. The next prime is 7660740103. The reversal of 7660740055 is 5500470667.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 7660740055 - 217 = 7660608983 is a prime.

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, 40319590 + ... + 40319779.

It is an arithmetic number, because the mean of its divisors is an integer number (1209590550).

Almost surely, 27660740055 is an apocalyptic number.

7660740055 is a deficient number, since it is larger than the sum of its proper divisors (2015984345).

7660740055 is a wasteful number, since it uses less digits than its factorization.

7660740055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80639393.

The product of its (nonzero) digits is 176400, while the sum is 40.

The square root of 7660740055 is about 87525.6536965020. The cubic root of 7660740055 is about 1971.3190042388.

The spelling of 7660740055 in words is "seven billion, six hundred sixty million, seven hundred forty thousand, fifty-five".

Divisors: 1 5 19 95 80639369 403196845 1532148011 7660740055