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68472507 = 3227100547
BaseRepresentation
bin1000001010011…
…00111010111011
311202211202121210
410011030322323
5120012110012
610443334203
71461002205
oct405147273
9152752553
1068472507
1135718454
121ab21363
131125549c
149145775
15602823c
hex414cebb

68472507 has 8 divisors (see below), whose sum is σ = 91699776. Its totient is φ = 45446792.

The previous prime is 68472493. The next prime is 68472511. The reversal of 68472507 is 70527486.

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 68472507 - 216 = 68406971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68472407) 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, 49593 + ... + 50954.

It is an arithmetic number, because the mean of its divisors is an integer number (11462472).

Almost surely, 268472507 is an apocalyptic number.

68472507 is a deficient number, since it is larger than the sum of its proper divisors (23227269).

68472507 is a wasteful number, since it uses less digits than its factorization.

68472507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100777.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 68472507 is about 8274.8115990638. The cubic root of 68472507 is about 409.1087262229.

The spelling of 68472507 in words is "sixty-eight million, four hundred seventy-two thousand, five hundred seven".

Divisors: 1 3 227 681 100547 301641 22824169 68472507