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68698007 = 759181919
BaseRepresentation
bin1000001100000…
…11111110010111
311210021012221122
410012003332113
5120041314012
610452234155
71462631510
oct406037627
9153235848
1068698007
1135861914
121b00b95b
1311304011
1491a3a07
15606ee72
hex4183f97

68698007 has 16 divisors (see below), whose sum is σ = 80371200. Its totient is φ = 57503520.

The previous prime is 68697997. The next prime is 68698009. The reversal of 68698007 is 70089686.

It is a cyclic number.

It is not a de Polignac number, because 68698007 - 24 = 68697991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68698009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74294 + ... + 75212.

It is an arithmetic number, because the mean of its divisors is an integer number (5023200).

Almost surely, 268698007 is an apocalyptic number.

68698007 is a deficient number, since it is larger than the sum of its proper divisors (11673193).

68698007 is a wasteful number, since it uses less digits than its factorization.

68698007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 68698007 is about 8288.4260870204. The cubic root of 68698007 is about 409.5573390240.

The spelling of 68698007 in words is "sixty-eight million, six hundred ninety-eight thousand, seven".

Divisors: 1 7 59 181 413 919 1267 6433 10679 54221 74753 166339 379547 1164373 9814001 68698007