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7668701507 = 29264437983
BaseRepresentation
bin1110010010001011…
…10001100101000011
3201210110000101210202
413021011301211003
5111201141422012
63304542515415
7361015613225
oct71105614503
921713011722
107668701507
113285866a45
1215a0295b6b
13952a072cc
1452a6a8415
152ed3a7cc2
hex1c9171943

7668701507 has 4 divisors (see below), whose sum is σ = 7933139520. Its totient is φ = 7404263496.

The previous prime is 7668701489. The next prime is 7668701531. The reversal of 7668701507 is 7051078667.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7051078667 = 8979225603.

It is a cyclic number.

It is not a de Polignac number, because 7668701507 - 216 = 7668635971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7668701597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132218963 + ... + 132219020.

It is an arithmetic number, because the mean of its divisors is an integer number (1983284880).

Almost surely, 27668701507 is an apocalyptic number.

7668701507 is a deficient number, since it is larger than the sum of its proper divisors (264438013).

7668701507 is a wasteful number, since it uses less digits than its factorization.

7668701507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264438012.

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 7668701507 is about 87571.1225633199. The cubic root of 7668701507 is about 1972.0016679579.

The spelling of 7668701507 in words is "seven billion, six hundred sixty-eight million, seven hundred one thousand, five hundred seven".

Divisors: 1 29 264437983 7668701507