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69888107 = 4713111351
BaseRepresentation
bin1000010101001…
…10100001101011
311212111200110102
410022212201223
5120342404412
610533540015
71506016262
oct412464153
9155450412
1069888107
11364a4a73
121b4a460b
131162c913
1493d35d9
1562078c2
hex42a686b

69888107 has 8 divisors (see below), whose sum is σ = 71926272. Its totient is φ = 67873000.

The previous prime is 69888101. The next prime is 69888109. The reversal of 69888107 is 70188896.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69888107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69888101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 482 + ... + 11832.

It is an arithmetic number, because the mean of its divisors is an integer number (8990784).

Almost surely, 269888107 is an apocalyptic number.

69888107 is a deficient number, since it is larger than the sum of its proper divisors (2038165).

69888107 is a wasteful number, since it uses less digits than its factorization.

69888107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11529.

The product of its (nonzero) digits is 193536, while the sum is 47.

The square root of 69888107 is about 8359.9107052647. The cubic root of 69888107 is about 411.9088209797.

The spelling of 69888107 in words is "sixty-nine million, eight hundred eighty-eight thousand, one hundred seven".

Divisors: 1 47 131 6157 11351 533497 1486981 69888107