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69982951 = 2313123227
BaseRepresentation
bin1000010101111…
…01101011100111
311212200111120011
410022331223213
5120403423301
610535551051
71506562633
oct412755347
9155614504
1069982951
113655a255
121b52b487
1311663b3c
149419dc3
156225a51
hex42bdae7

69982951 has 8 divisors (see below), whose sum is σ = 73586304. Its totient is φ = 66426360.

The previous prime is 69982901. The next prime is 69982961. The reversal of 69982951 is 15928996.

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 69982951 - 27 = 69982823 is a prime.

It is a super-2 number, since 2×699829512 = 9795226861336802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 69982895 and 69982904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69982901) 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, 8601 + ... + 14626.

It is an arithmetic number, because the mean of its divisors is an integer number (9198288).

Almost surely, 269982951 is an apocalyptic number.

69982951 is a deficient number, since it is larger than the sum of its proper divisors (3603353).

69982951 is a wasteful number, since it uses less digits than its factorization.

69982951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23381.

The product of its digits is 349920, while the sum is 49.

The square root of 69982951 is about 8365.5813306667. The cubic root of 69982951 is about 412.0950683150.

The spelling of 69982951 in words is "sixty-nine million, nine hundred eighty-two thousand, nine hundred fifty-one".

Divisors: 1 23 131 3013 23227 534221 3042737 69982951